Tài liệu Ebook 2013 asme bpvc iii1 nb - rules for construction of nuclear facility component

AN INTERNATIONAL CODE III Rules for Construction of Nuclear Facility Components Division 1 — Subsection NB Class 1 Components --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- 2013 ASME Boiler and Pressure Vessel Code 5/15/13 5:26 PM AN INTERNATIONAL CODE 2013 ASME Boiler & Pressure Vessel Code 2013 Edition July 1, 2013 III RULES FOR CONSTRUCTION OF NUCLEAR FACILITY COMPONENTS Division 1 - Subsection NB Class 1 Components ASME Boiler and Pressure Vessel Committee on Nuclear Power Two Park Avenue • New York, NY • 10016 USA Date of Issuance: July 1, 2013 This international code or standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the publicat-large. ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals. The endnotes in this document are part of this American National Standard. ASME collective membership mark --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- Certification Mark The above ASME symbol is registered in the U.S. Patent Office. “ASME” is the trademark of The American Society of Mechanical Engineers. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Library of Congress Catalog Card Number: 56-3934 Printed in the United States of America Adopted by the Council of The American Society of Mechanical Engineers, 1914; latest edition 2013. The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990 Copyright © 2013 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved TABLE OF CONTENTS List of Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Statement of Policy on the Use of the Certification Mark and Code Authorization in Advertising . . . . . . . . . . . . Statement of Policy on the Use of ASME Marking to Identify Manufactured Items . . . . . . . . . . . . . . . . . . . . . . . . Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees . . . . . . . . . . . . . . . . . Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Organization of Section III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of Changes in Record Number Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cross-Referencing and Stylistic Changes in the Boiler and Pressure Vessel Code . . . . . . . . . . . . . . . . . . . . . . . . . x xii xiv xiv xv xvii xxxii xxxv xxxvii xxxviii Article NB-1000 NB-1100 NB-1110 NB-1120 NB-1130 NB-1140 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aspects of Construction Covered by these Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boundaries of Jurisdiction Applicable to this Subsection . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical and Mechanical Penetration Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 1 1 2 Article NB-2000 NB-2100 NB-2110 NB-2120 NB-2130 NB-2140 NB-2150 NB-2160 NB-2170 NB-2180 NB-2190 NB-2200 NB-2210 NB-2220 Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements for Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Principal Terms Employed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure‑Retaining Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certification of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Material Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deterioration of Material in Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat Treatment to Enhance Impact Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Procedures for Heat Treatment of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nonpressure‑Retaining Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Material Test Coupons and Specimens for Ferritic Steel Material . . . . . . . . . . . . . . . . . . . . Heat Treatment Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Procedure for Obtaining Test Coupons and Specimens for Quenched and Tempered Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fracture Toughness Requirements for Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Material to be Impact Tested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Impact Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Test Requirements and Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Number of Impact Tests Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Retests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Calibration of Instruments and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weld Metal Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage and Handling of Welding Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination and Repair of Pressure‑retaining Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination of Pressure‑retaining Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination After Quenching and Tempering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination and Repair of Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination and Repair of Forgings and Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 7 7 9 9 9 9 9 9 9 10 10 NB-2300 NB-2310 NB-2320 NB-2330 NB-2340 NB-2350 NB-2360 NB-2400 NB-2410 NB-2420 NB-2430 NB-2440 NB-2500 NB-2510 NB-2520 NB-2530 NB-2540 10 12 12 12 13 14 15 15 15 15 16 17 19 19 19 20 20 22 NB-2550 24 27 27 33 35 35 35 Article NB-3000 NB-3100 NB-3110 NB-3120 NB-3130 NB-3200 NB-3210 NB-3220 NB-3230 NB-3300 NB-3310 NB-3320 NB-3330 NB-3340 NB-3350 NB-3360 NB-3400 NB-3410 NB-3420 NB-3430 NB-3440 NB-3500 NB-3510 NB-3520 NB-3530 NB-3540 NB-3550 NB-3560 NB-3590 NB-3600 NB-3610 NB-3620 NB-3630 NB-3640 NB-3650 NB-3660 NB-3670 NB-3680 NB-3690 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Design Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design by Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Limits for other than Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Limits for Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vessel Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Openings and Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis of Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of Welded Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Vessel Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements for Centrifugal Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Requirements for Centrifugal Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of Specific Pump Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valve Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of Pressure‑Retaining Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cyclic Loading Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Relief Valve Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Piping Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Piping Design and Analysis Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Analysis of Piping Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Special Piping Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Indices and Flexibility Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dimensional Requirements for Piping Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 36 36 36 37 41 41 46 60 61 61 61 62 70 70 73 73 73 74 74 76 78 78 80 80 82 96 96 97 100 100 103 104 105 113 120 120 122 136 Article NB-4000 NB-4100 NB-4110 NB-4120 NB-4130 NB-4200 NB-4210 NB-4220 Fabrication and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certification of Materials and Fabrication by Certificate Holder . . . . . . . . . . . . . . . . . . . . . . Repair of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forming, Fitting, and Aligning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cutting, Forming, and Bending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forming Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 137 137 137 138 138 138 139 --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- NB-2560 NB-2570 NB-2580 NB-2600 NB-2610 NB-2700 Examination and Repair of Seamless and Welded (without Filler Metal) Tubular Products and Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination and Repair of Tubular Products and Fittings Welded with Filler Metal . . . . Examination and Repair of Statically and Centrifugally Cast Products . . . . . . . . . . . . . . . . Examination of Bolts, Studs, and Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Material Organizations’ Quality System Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Documentation and Maintenance of Quality System Programs . . . . . . . . . . . . . . . . . . . . . . . Dimensional Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NB-4230 NB-4240 NB-4250 NB-4300 NB-4310 NB-4320 NB-4330 NB-4350 NB-4360 NB-4400 NB-4410 NB-4420 NB-4430 NB-4440 NB-4450 NB-4500 NB-4510 NB-4520 NB-4530 NB-4540 NB-4600 NB-4610 NB-4620 NB-4630 NB-4650 NB-4660 NB-4700 NB-4710 NB-4720 NB-4730 Fitting and Aligning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Requirements for Weld Joints in Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding end Transitions — Maximum Envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding Qualifications, Records, and Identifying Stamps . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements for Welding Procedure Qualification Tests . . . . . . . . . . . . . . . . . . . . Special Qualification Requirements for Tube‑to‑Tubesheet Welds . . . . . . . . . . . . . . . . . . . . Qualification Requirements for Welding Specially Designed Welded Seals . . . . . . . . . . . . . Rules Governing Making, Examining, and Repairing Welds . . . . . . . . . . . . . . . . . . . . . . . . . . Precautions to be Taken Before Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rules for Making Welded Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding of Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding of Appurtenances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repair of Weld Metal Defects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rules for Brazing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brazing Qualification Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fitting and Aligning of Parts to be Brazed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination of Brazed Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welding Preheat Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Postweld Heat Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat Treatment of Welds Other Than the Final Postweld Heat Treatment . . . . . . . . . . . . . Heat Treatment After Bending or Forming for Pipes, Pumps, and Valves . . . . . . . . . . . . . . Heat Treatment of Electroslag Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bolting and Threading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bolting Flanged Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical and Mechanical Penetration Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 142 144 150 150 151 156 159 159 160 160 160 162 163 163 166 166 166 168 168 168 168 168 175 176 176 176 176 176 176 Article NB-5000 NB-5100 NB-5110 NB-5120 NB-5130 NB-5140 NB-5200 NB-5210 NB-5220 Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements for Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Methods, Nondestructive Examination Procedures, and Cleaning . . . . . . . . . . . . . . . . . . . . Time of Examination of Welds and Weld Metal Cladding . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination of Weld Edge Preparation Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination of Welds and Adjacent Base Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Examination of Welds for Fabrication and Preservice Baseline . . . . . . . . . . . . . . Category a Vessel Welded Joints and Longitudinal Welded Joints in Other Components . Category B Vessel Welded Joints and Circumferential Welded Joints in Piping, Pumps, and Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Category C Vessel Welded Joints and Similar Welded Joints in Other Components . . . . . . Category D Vessel Welded Joints and Branch and Piping Connections in Other Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weld Metal Buildups to Form Nozzles, Branch and Piping Connections and for Closure Opening Reinforcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fillet, Partial Penetration, Socket, and Attachment Welded Joints . . . . . . . . . . . . . . . . . . . . Special Welded Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preservice Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radiographic Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ultrasonic Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Magnetic Particle Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Liquid Penetrant Acceptance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Eddy Current Preservice Examination of Installed Nonferromagnetic Steam Generator Heat Exchanger Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Visual Acceptance Standards for Brazed Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 177 177 177 178 179 179 179 NB-5230 NB-5240 NB-5250 --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- NB-5260 NB-5270 NB-5280 NB-5300 NB-5320 NB-5330 NB-5340 NB-5350 NB-5360 NB-5370 179 179 179 180 180 180 181 181 181 182 182 182 183 183 NB-5380 NB-5400 NB-5410 NB-5500 NB-5510 NB-5520 NB-5530 Bubble Formation Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Final Examination of Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examination After Hydrostatic Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Qualifications and Certification of Nondestructive Examination Personnel . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Personnel Qualification, Certification, and Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 183 183 183 183 183 184 Article NB-6000 NB-6100 NB-6110 NB-6120 NB-6200 NB-6210 NB-6220 NB-6300 NB-6310 NB-6320 NB-6400 NB-6410 NB-6600 NB-6610 NB-6620 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Testing of Components, Appurtenances, and Systems . . . . . . . . . . . . . . . . . . . . . . Preparation for Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydrostatic Test Pressure Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pneumatic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pneumatic Testing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pneumatic Test Pressure Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Test Gages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................... Special Test Pressure Situations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Components Designed for External Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Testing of Combination Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 185 185 186 186 186 186 187 187 187 187 187 188 188 188 Article NB-7000 NB-7100 NB-7110 NB-7120 NB-7130 NB-7140 NB-7150 NB-7160 NB-7170 NB-7200 NB-7210 NB-7220 NB-7230 NB-7240 NB-7250 NB-7300 NB-7310 NB-7320 NB-7400 NB-7410 NB-7420 NB-7500 NB-7510 NB-7520 NB-7530 NB-7540 NB-7550 NB-7600 NB-7610 NB-7620 NB-7700 NB-7710 NB-7720 Overpressure Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Integrated Overpressure Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Verification of the Operation of Reclosing Pressure Relief Devices . . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptable Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unacceptable Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Permitted Use of Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overpressure Protection Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Responsibility for Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Content of Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certification of Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Review of Report After Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Filing of Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relieving Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Expected System Pressure Transient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unexpected System Excess Pressure Transient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . Set Pressures of Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Set Pressure Limitations for Expected System Pressure Transient Conditions . . . . . . . . . . Set Pressure Limitation for Unexpected System Excess Pressure Transient Conditions . . Operating and Design Requirements for Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . Safety, Safety Relief, and Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pilot Operated Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Actuated Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety Valves and Pilot Operated Pressure Relief Valves with Auxiliary Actuating Devices Alternative Test Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nonreclosing Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rupture Disk Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Responsibility for Certification of Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . Responsibility for Certification of Nonreclosing Pressure Relief Devices . . . . . . . . . . . . . . 189 189 189 189 189 189 190 190 190 191 191 191 191 192 192 192 192 192 193 193 193 193 193 194 195 195 196 197 197 197 198 198 198 NB-7730 NB-7740 NB-7800 NB-7810 NB-7820 NB-7830 Capacity Certification Pressure Relief Valves — Compressible Fluids . . . . . . . . . . . . . . . . . Capacity Certification of Pressure Relief Valves—Incompressible Fluids . . . . . . . . . . . . . . Marking, Stamping With Certification Mark, and Data Reports . . . . . . . . . . . . . . . . . . . . . . Pressure Relief Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rupture Disk Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Certificate of Authorization to Use Certification Mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 201 203 203 203 204 Article NB-8000 NB-8100 Nameplates, Stamping with Certification Mark, and Reports . . . . . . . . . . . . . . . . . . . . General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205 205 FIGURES NB-1132.2-1 NB-1132.2-2 NB-1132.2-3 NB-1132.2-4 NB-2433.1-1 NB-2552-1 NB-2575.2-1 NB-3213-1 NB-3221-1 NB-3222-1 NB-3224-1 NB-3332.2-1 NB-3338.2(a)-1 NB-3338.2(a)-2 NB-3339.1(b)-1 NB-3339.4-1 NB-3351-1 NB-3352-1 NB-3361-1 NB-3423-1 NB-3423-2 NB-3433.4-1 NB-3441.1-1 NB-3441.1-2 NB-3441.2-1 NB-3441.3-1 NB-3441.3-2 NB-3441.4(a)-1 NB-3441.5-1 NB-3441.6(a)-1 NB-3544.1(a)-1 NB-3544.1(c)-1 NB-3544.3-1 NB-3544.7-1 NB-3545.1(a)-1 NB-3545.2(a)-1 NB-3545.2(c)-1 NB-3545.2(c)-3 NB-3545.2(c)-4 NB-3545.2(c)-5 NB-3545.2(c)-6 NB-3591.1-1 NB-3591.1-2 Attachments in the Component Support Load Path That Do Not Perform a Pressure‑Retaining Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Attachments That Do Not Perform a Pressure‑Retaining Function and Are Not in the Component Support Load Path (Nonstructural Attachments) . . . . . . . . . . . . . . . . . . . . Attachments That Perform a Pressure‑Retaining Function . . . . . . . . . . . . . . . . . . . . . . . . Attachments Within the Reactor Pressure Vessel (Core Support Structures) That Do Not Perform a Pressure‑Retaining Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weld Metal Delta Ferrite Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Axial Propagation of Sound in Tube Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Pressure‑Retaining Parts of Pumps and Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . Examples of Reversing and Nonreversing Dynamic Loads . . . . . . . . . . . . . . . . . . . . . . . . Stress Categories and Limits of Stress Intensity for Design Conditions . . . . . . . . . . . . . . Stress Categories and Limits of Stress Intensity for Level A and Level B Service Limits Stress Categories and Limits of Stress Intensity for Level C Service Limits . . . . . . . . . . Chart for Determining Value of F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direction of Stress Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nozzle Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examples of Acceptable Transition Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Limits of Reinforcing Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Welded Joint Locations Typical of Categories A, B, C, and D . . . . . . . . . . . . . . . . . . . . . . . Typical Butt Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Category A and B Joints Between Sections of Unequal Thickness . . . . . . . . . . . . . . . . . . Typical Single Volute Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Double Volute Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimum Tangential Inlet and Outlet Wall Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type A Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type A Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type B Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type C Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type C Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type D Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type E Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type F Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fillets and Corners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ring Grooves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lugs and Protuberances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flat Wall Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressure Area Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Critical Sections of Valve Bodies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model for Determining Secondary Stress in Valve Crotch Region . . . . . . . . . . . . . . . . . . Thermal Stress Index Versus Thickness Continuity Run or Branch . . . . . . . . . . . . . . . . . Secondary Stress Index Versus Thickness Discontinuity Run or Branch . . . . . . . . . . . . . C 4 Versus T e 1/te . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Index for Thermal Fatigue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Pressure Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Pressure Relief and Safety Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 5 6 20 25 32 45 50 51 56 63 65 66 68 69 71 72 73 74 75 75 76 76 76 77 77 78 78 78 84 84 85 86 87 90 92 93 94 95 95 98 99 NB-3594.3-1 NB-3622-1 NB-3643.3(a)-1 NB-3643.3(a)-2 NB-3643.3(a)-3 NB-3644(b)-1 NB-3647.2-1 NB-3653.2(b)-1 NB-3683.1(c)-1 NB-3683.1(d)-1 NB-3683.6-1 NB-3684-1 NB-3685.2-1 NB-3686.1-1 NB-3686.2-1 NB-3686.5-1 NB-3686.6-1 NB-4221.1-1 NB-4221.2(a)-1 NB-4221.2(a)-2 NB-4233(a)-1 NB-4243-1 NB-4244(a)-1 NB-4244(b)-1 NB-4244(c)-1 NB-4244(d)-1 NB-4244(d)-2 NB-4244(e)-1 NB-4246(a)-1 NB-4246(b)-1 NB-4250-1 NB-4250-2 NB-4250-3 NB-4427-1 NB-4433-1 NB-4440-1 NB-4511-1 NB-4622.9(d)(1)-1 TABLES NB-2332(a)-1 NB-2333-1 NB-2432.1-1 NB-2432.2(a)-1 NB-2432.2(a)-2 NB-2571-1 NB-3217-1 NB-3217-2 NB-3228.5(b)-1 NB-3338.2(c)-1 NB-3339.3-1 NB-3339.7(c)-1 NB-3641.1(a)-1 NB-3642.1(b)-1 NB-3681(a)-1 Valve Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examples of Reversing and Nonreversing Dynamic Loads . . . . . . . . . . . . . . . . . . . . . . . . Branch Connection Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Reinforcement of Openings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Reinforced Extruded Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Miter Joint Geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Types of Permanent Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Decomposition of Temperature Distribution Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......................................................................... ......................................................................... ......................................................................... Direction of Stress Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elbow Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......................................................................... ......................................................................... Branch Connections in Straight Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Difference in Cross‑Sectional Diameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Permissible Deviatione From a True Circular Form . . . . . . . . . . . . . . . . . . . . . Maximum Arc Length for Determining Plus or Minus Deviation . . . . . . . . . . . . . . . . . . . Butt Weld Alignment and Mismatch Tolerances for Unequal I.D. and O.D. When Components Are Welded From One Side and Fairing Is Not Performed . . . . . . . . . . . . . . . Acceptable Full Penetration Weld Details for Category C Joints (NB-3352.3) . . . . . . . . . Nozzles Joined by Full Penetration Butt Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Nozzles Joined by Full Penetration Corner Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Deposited Weld Metal Used as Reinforcement of Openings for Nozzles . . . . . . . . . . . . . Partial Penetration Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Partial Penetration Nozzle for Coaxial Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oblique Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical Piping Branch Connections Joined by Full Penetration Welds . . . . . . . . . . . . . . Typical Piping Branch Connections Joined by a Fillet Weld or a Partial Penetration Weld Welding end Transitions — Maximum Envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Component to Pipe Weld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pipe to Pipe Weld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fillet and Socket Weld Details and Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Types of Attachment Welds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appurtenance Weld Joint Details Size NPS 2 (DN 50) and Smaller . . . . . . . . . . . . . . . . . Brazed Connections for Appurtenances and Piping, NPS 1 (DN 25) and Less . . . . . . . . Dissimilar Metal Repair Cavity Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 104 108 109 110 112 114 117 125 126 129 131 134 134 135 135 136 139 140 141 Required Cv Values for Piping, Pumps, and Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Cv Values for Bolting Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sampling of Welding Materials for Chemical Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chemical Analysis for Reactor Vessel Welding Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chemical Analysis for Welding Material for Other Than Reactor Vessel Welds . . . . . . . . . . Required Examinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Classification of Stress Intensity in Vessels for Some Typical Cases . . . . . . . . . . . . . . . . . . . Classification of Stress Intensity in Piping, Typical Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . Values of m, n, and T max for Various Classes of Permitted Materials . . . . . . . . . . . . . . . . . . . Stress Indices for Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Minimum Reinforcing Area Ar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Indices for Internal Pressure Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Values of A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bend Radius Versus Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stress Indices for Use With Equations in NB-3650 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 14 18 19 19 28 47 49 60 67 68 70 106 107 123 --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- 143 145 146 147 148 149 150 151 152 153 154 155 155 162 164 165 167 175 NB-3685.1-1 NB-3685.1-2 NB-4232-1 NB-4524-1 NB-4622.1-1 NB-4622.4(c)-1 NB-4622.7(b)-1 NB-5111-1 Curved Pipe or Welding End Elbows, Internal Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Curved Pipe or Welding End Elbows, Moment Loading ( ) .................... Maximum Allowable Offset in Final Welded Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Design Temperatures for Brazing Filler Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mandatory Requirements for Postweld Heat Treatment of Welds . . . . . . . . . . . . . . . . . . . . . Alternative Holding Temperatures and Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exemptions to Mandatory PWHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thickness, IQI Designations, Essential Holes, and Wire Diameters . . . . . . . . . . . . . . . . . . . . 132 133 142 168 169 170 171 178 ENDNOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- LIST OF SECTIONS ð13Þ SECTIONS I Rules for Construction of Power Boilers II Materials • Part A — Ferrous Material Specifications • Part B — Nonferrous Material Specifications • Part C — Specifications for Welding Rods, Electrodes, and Filler Metals • Part D — Properties (Customary) • Part D — Properties (Metric) III Rules for Construction of Nuclear Facility Components • Subsection NCA — General Requirements for Division 1 and Division 2 • Appendices • Division 1 – Subsection NB — Class 1 Components – Subsection NC — Class 2 Components – Subsection ND — Class 3 Components – Subsection NE — Class MC Components – Subsection NF — Supports – Subsection NG — Core Support Structures – Subsection NH — Class 1 Components in Elevated Temperature Service • Division 2 — Code for Concrete Containments • Division 3 — Containments for Transportation and Storage of Spent Nuclear Fuel and High Level Radioactive Material and Waste • Division 5 — High Temperature Reactors IV Rules for Construction of Heating Boilers V Nondestructive Examination VI Recommended Rules for the Care and Operation of Heating Boilers VII Recommended Guidelines for the Care of Power Boilers VIII Rules for Construction of Pressure Vessels • Division 1 • Division 2 — Alternative Rules • Division 3 — Alternative Rules for Construction of High Pressure Vessels IX Welding and Brazing Qualifications X Fiber-Reinforced Plastic Pressure Vessels XI Rules for Inservice Inspection of Nuclear Power Plant Components XII Rules for Construction and Continued Service of Transport Tanks --`,``,``,,`,````,,,,,`````,`, INTERPRETATIONS ASME issues written replies to inquiries concerning interpretation of technical aspects of the Code. Interpretations of the Code are posted in January and July at http://cstools.asme.org/interpretations.cfm. Any Interpretations issued during the previous two calendar years are included with the publication of the applicable Section of the Code. Interpretations of Section III, Divisions 1 and 2 and Section III Appendices are included with Subsection NCA. CODE CASES The Boiler and Pressure Vessel Code committees meet regularly to consider proposed additions and revisions to the Code and to formulate Cases to clarify the intent of existing requirements or provide, when the need is urgent, rules for materials or constructions not covered by existing Code rules. Those Cases that have been adopted will appear in the appropriate 2013 Code Cases book: “Boilers and Pressure Vessels” or “Nuclear Components.” Supplements will be sent automatically to the purchasers of the Code Cases books up to the publication of the 2015 Code. FOREWORD ð13Þ (This Foreword is provided as an aid to the user and is not part of the rules of this Code.) --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- In 1911, The American Society of Mechanical Engineers established the Boiler and Pressure Vessel Committee to formulate standard rules for the construction of steam boilers and other pressure vessels. In 2009, the Boiler and Pressure Vessel Committee was superseded by the following committees: (a) Committee on Power Boilers (I) (b) Committee on Materials (II) (c) Committee on Construction of Nuclear Facility Components (III) (d) Committee on Heating Boilers (IV) (e) Committee on Nondestructive Examination (V) (f) Committee on Pressure Vessels (VIII) (g) Committee on Welding and Brazing (IX) (h) Committee on Fiber-Reinforced Plastic Pressure Vessels (X) (i) Committee on Nuclear Inservice Inspection (XI) (j) Committee on Transport Tanks (XII) Where reference is made to “the Committee” in this Foreword, each of these committees is included individually and collectively. The Committee's function is to establish rules of safety relating only to pressure integrity, which govern the construction* of boilers, pressure vessels, transport tanks, and nuclear components, and the inservice inspection of nuclear components and transport tanks. The Committee also interprets these rules when questions arise regarding their intent. This Code does not address other safety issues relating to the construction of boilers, pressure vessels, transport tanks, or nuclear components, or the inservice inspection of nuclear components or transport tanks. Users of the Code should refer to the pertinent codes, standards, laws, regulations, or other relevant documents for safety issues other than those relating to pressure integrity. Except for Sections XI and XII, and with a few other exceptions, the rules do not, of practical necessity, reflect the likelihood and consequences of deterioration in service related to specific service fluids or external operating environments. In formulating the rules, the Committee considers the needs of users, manufacturers, and inspectors of pressure vessels. The objective of the rules is to afford reasonably certain protection of life and property, and to provide a margin for deterioration in service to give a reasonably long, safe period of usefulness. Advancements in design and materials and evidence of experience have been recognized. This Code contains mandatory requirements, specific prohibitions, and nonmandatory guidance for construction activities and inservice inspection and testing activities. The Code does not address all aspects of these activities and those aspects that are not specifically addressed should not be considered prohibited. The Code is not a handbook and cannot replace education, experience, and the use of engineering judgment. The phrase engineering judgement refers to technical judgments made by knowledgeable engineers experienced in the application of the Code. Engineering judgments must be consistent with Code philosophy, and such judgments must never be used to overrule mandatory requirements or specific prohibitions of the Code. The Committee recognizes that tools and techniques used for design and analysis change as technology progresses and expects engineers to use good judgment in the application of these tools. The designer is responsible for complying with Code rules and demonstrating compliance with Code equations when such equations are mandatory. The Code neither requires nor prohibits the use of computers for the design or analysis of components constructed to the requirements of the Code. However, designers and engineers using computer programs for design or analysis are cautioned that they are responsible for all technical assumptions inherent in the programs they use and the application of these programs to their design. The rules established by the Committee are not to be interpreted as approving, recommending, or endorsing any proprietary or specific design, or as limiting in any way the manufacturer's freedom to choose any method of design or any form of construction that conforms to the Code rules. The Committee meets regularly to consider revisions of the rules, new rules as dictated by technological development, Code Cases, and requests for interpretations. Only the Committee has the authority to provide official interpretations of this Code. Requests for revisions, new rules, Code Cases, or interpretations shall be addressed to the Secretary in writing * Construction, as used in this Foreword, is an all-inclusive term comprising materials, design, fabrication, examination, inspection, testing, certification, and pressure relief. --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- and shall give full particulars in order to receive consideration and action (see Submittal of Technical Inquiries to the Boiler and Pressure Vessel Standards Committees). Proposed revisions to the Code resulting from inquiries will be presented to the Committee for appropriate action. The action of the Committee becomes effective only after confirmation by ballot of the Committee and approval by ASME. Proposed revisions to the Code approved by the Committee are submitted to the American National Standards Institute (ANSI) and published at http://cstools.asme.org/csconnect/public/index.cfm?PublicReview=Revisions to invite comments from all interested persons. After public review and final approval by ASME, revisions are published at regular intervals in Editions of the Code. The Committee does not rule on whether a component shall or shall not be constructed to the provisions of the Code. The scope of each Section has been established to identify the components and parameters considered by the Committee in formulating the Code rules. Questions or issues regarding compliance of a specific component with the Code rules are to be directed to the ASME Certificate Holder (Manufacturer). Inquiries concerning the interpretation of the Code are to be directed to the Committee. ASME is to be notified should questions arise concerning improper use of an ASME Certification Mark. When required by context in this Section, the singular shall be interpreted as the plural, and vice versa, and the feminine, masculine, or neuter gender shall be treated as such other gender as appropriate. STATEMENT OF POLICY ON THE USE OF THE CERTIFICATION MARK AND CODE AUTHORIZATION IN ADVERTISING ASME has established procedures to authorize qualified organizations to perform various activities in accordance with the requirements of the ASME Boiler and Pressure Vessel Code. It is the aim of the Society to provide recognition of organizations so authorized. An organization holding authorization to perform various activities in accordance with the requirements of the Code may state this capability in its advertising literature. Organizations that are authorized to use the Certification Mark for marking items or constructions that have been constructed and inspected in compliance with the ASME Boiler and Pressure Vessel Code are issued Certificates of Authorization. It is the aim of the Society to maintain the standing of the Certification Mark for the benefit of the users, the enforcement jurisdictions, and the holders of the Certification Mark who comply with all requirements. Based on these objectives, the following policy has been established on the usage in advertising of facsimiles of the Certification Mark, Certificates of Authorization, and reference to Code construction. The American Society of Mechanical Engineers does not “approve,” “certify,” “rate,” or “endorse” any item, construction, or activity and there shall be no statements or implications that might so indicate. An organization holding the Certification Mark and/or a Certificate of Authorization may state in advertising literature that items, constructions, or activities “are built (produced or performed) or activities conducted in accordance with the requirements of the ASME Boiler and Pressure Vessel Code,” or “meet the requirements of the ASME Boiler and Pressure Vessel Code.” An ASME corporate logo shall not be used by any organization other than ASME. The Certification Mark shall be used only for stamping and nameplates as specifically provided in the Code. However, facsimiles may be used for the purpose of fostering the use of such construction. Such usage may be by an association or a society, or by a holder of the Certification Mark who may also use the facsimile in advertising to show that clearly specified items will carry the Certification Mark. General usage is permitted only when all of a manufacturer’s items are constructed under the rules. STATEMENT OF POLICY ON THE USE OF ASME MARKING TO IDENTIFY MANUFACTURED ITEMS --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- The ASME Boiler and Pressure Vessel Code provides rules for the construction of boilers, pressure vessels, and nuclear components. This includes requirements for materials, design, fabrication, examination, inspection, and stamping. Items constructed in accordance with all of the applicable rules of the Code are identified with the official Certification Mark described in the governing Section of the Code. Markings such as “ASME,” “ASME Standard,” or any other marking including “ASME” or the Certification Mark shall not be used on any item that is not constructed in accordance with all of the applicable requirements of the Code. Items shall not be described on ASME Data Report Forms nor on similar forms referring to ASME that tend to imply that all Code requirements have been met when, in fact, they have not been. Data Report Forms covering items not fully complying with ASME requirements should not refer to ASME or they should clearly identify all exceptions to the ASME requirements. SUBMITTAL OF TECHNICAL INQUIRIES TO THE BOILER AND PRESSURE VESSEL STANDARDS COMMITTEES ð13Þ 1 INTRODUCTION (a) The following information provides guidance to Code users for submitting technical inquiries to the committees. See Guideline on the Approval of New Materials Under the ASME Boiler and Pressure Vessel Code in Section II, Parts C and D for additional requirements for requests involving adding new materials to the Code. Technical inquiries include requests for revisions or additions to the Code rules, requests for Code Cases, and requests for Code Interpretations, as described below. (1) Code Revisions. Code revisions are considered to accommodate technological developments, address administrative requirements, incorporate Code Cases, or to clarify Code intent. --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- (2) Code Cases. Code Cases represent alternatives or additions to existing Code rules. Code Cases are written as a question and reply, and are usually intended to be incorporated into the Code at a later date. When used, Code Cases prescribe mandatory requirements in the same sense as the text of the Code. However, users are cautioned that not all jurisdictions or owners automatically accept Code Cases. The most common applications for Code Cases are: (-a) to permit early implementation of an approved Code revision based on an urgent need (-b) to permit the use of a new material for Code construction (-c) to gain experience with new materials or alternative rules prior to incorporation directly into the Code (3) Code Interpretations. Code Interpretations provide clarification of the meaning of existing rules in the Code, and are also presented in question and reply format. Interpretations do not introduce new requirements. In cases where existing Code text does not fully convey the meaning that was intended, and revision of the rules is required to support an interpretation, an Intent Interpretation will be issued and the Code will be revised. (b) The Code rules, Code Cases, and Code Interpretations established by the committees are not to be considered as approving, recommending, certifying, or endorsing any proprietary or specific design, or as limiting in any way the freedom of manufacturers, constructors, or owners to choose any method of design or any form of construction that conforms to the Code rules. (c) Inquiries that do not comply with these provisions or that do not provide sufficient information for a committee’s full understanding may result in the request being returned to the inquirer with no action. 2 INQUIRY FORMAT Submittals to a committee shall include: (a) Purpose. Specify one of the following: (1) revision of present Code rules (2) new or additional Code rules (3) Code Case (4) Code Interpretation (b) Background. Provide the information needed for the committee’s understanding of the inquiry, being sure to include reference to the applicable Code Section, Division, Edition, Addenda (if applicable), paragraphs, figures, and tables. Preferably, provide a copy of the specific referenced portions of the Code. (c) Presentations. The inquirer may desire or be asked to attend a meeting of the committee to make a formal presentation or to answer questions from the committee members with regard to the inquiry. Attendance at a committee meeting shall be at the expense of the inquirer. The inquirer’s attendance or lack of attendance at a meeting shall not be a basis for acceptance or rejection of the inquiry by the committee. 3 CODE REVISIONS OR ADDITIONS Requests for Code revisions or additions shall provide the following: (a) Proposed Revisions or Additions. For revisions, identify the rules of the Code that require revision and submit a copy of the appropriate rules as they appear in the Code, marked up with the proposed revision. For additions, provide the recommended wording referenced to the existing Code rules. (b) Statement of Need. Provide a brief explanation of the need for the revision or addition. (c) Background Information. Provide background information to support the revision or addition, including any data or changes in technology that form the basis for the request that will allow the committee to adequately evaluate the proposed revision or addition. Sketches, tables, figures, and graphs should be submitted as appropriate. When applicable, identify any pertinent paragraph in the Code that would be affected by the revision or addition and identify paragraphs in the Code that reference the paragraphs that are to be revised or added. 4 CODE CASES Requests for Code Cases shall provide a Statement of Need and Background Information similar to that defined in 3(b) and 3(c), respectively, for Code revisions or additions. The urgency of the Code Case (e.g., project underway or imminent, new procedure, etc.) must be defined and it must be confirmed that the request is in connection with equipment that will bear the Certification Mark, with the exception of Section XI applications. The proposed Code Case should identify the Code Section and Division, and be written as a Question and a Reply in the same format as existing Code Cases. Requests for Code Cases should also indicate the applicable Code Editions and Addenda (if applicable) to which the proposed Code Case applies. 5 CODE INTERPRETATIONS (a) Requests for Code Interpretations shall provide the following: (1) Inquiry. Provide a condensed and precise question, omitting superfluous background information and, when possible, composed in such a way that a “yes” or a “no” Reply, with brief provisos if needed, is acceptable. The question should be technically and editorially correct. (2) Reply. Provide a proposed Reply that will clearly and concisely answer the Inquiry question. Preferably, the Reply should be “yes” or “no,” with brief provisos if needed. (3) Background Information. Provide any background information that will assist the committee in understanding the proposed Inquiry and Reply. (b) Requests for Code Interpretations must be limited to an interpretation of a particular requirement in the Code or a Code Case. The committee cannot consider consulting type requests such as the following: (1) a review of calculations, design drawings, welding qualifications, or descriptions of equipment or parts to determine compliance with Code requirements; (2) a request for assistance in performing any Code-prescribed functions relating to, but not limited to, material selection, designs, calculations, fabrication, inspection, pressure testing, or installation; (3) a request seeking the rationale for Code requirements. 6 SUBMITTALS Submittals to and responses from the committees shall meet the following: (a) Submittal. Inquiries from Code users shall be in English and preferably be submitted in typewritten form; however, legible handwritten inquiries will also be considered. They shall include the name, address, telephone number, fax number, and e-mail address, if available, of the inquirer and be mailed to the following address: Secretary ASME Boiler and Pressure Vessel Committee Two Park Avenue New York, NY 10016-5990 As an alternative, inquiries may be submitted via e-mail to: [email protected]. (b) Response. The Secretary of the appropriate committee shall acknowledge receipt of each properly prepared inquiry and shall provide a written response to the inquirer upon completion of the requested action by the committee. ð13Þ PERSONNEL ASME Boiler and Pressure Vessel Standards Committees, Subgroups, and Working Groups January 1, 2013 MARINE CONFERENCE GROUP TECHNICAL OVERSIGHT MANAGEMENT COMMITTEE (TOMC) J. G. Feldstein, Chair T. P. Pastor, Vice Chair J. S. Brzuszkiewicz, Staff Secretary R. W. Barnes R. J. Basile J. E. Batey T. L. Bedeaux D. L. Berger D. A. Canonico A. Chaudouet R. P. Deubler D. A. Douin R. E. Gimple M. Gold T. E. Hansen J. F. Henry G. G. Karcher W. M. Lundy J. R. Mackay U. R. Miller W. E. Norris G. C. Park M. D. Rana B. W. Roberts S. C. Roberts F. J. Schaaf, Jr. A. Selz B. F. Shelley W. J. Sperko R. W. Swayne HONORARY MEMBERS (MAIN COMMITTEE) M. H. Jawad A. J. Justin W. G. Knecht J. LeCoff T. G. McCarty G. C. Millman R. A. Moen R. F. Reedy, Sr. F. P. Barton R. J. Cepluch T. M. Cullen W. D. Doty J. R. Farr G. E. Feigel R. C. Griffin O. F. Hedden H. N. Patel, Chair J. S. Brzuszkiewicz, Staff Secretary J. G. Hungerbuhler, Jr. G. Nair J. D. Reynolds CONFERENCE COMMITTEE D. A. Douin — Ohio, Secretary J. T. Amato — Minnesota B. P. Anthony — Rhode Island R. D. Austin — Arizona G. Baumgardner — Michigan W. K. Brigham — New Hampshire C. W. Bryan — Tennessee M. A. Burns — Florida J. H. Burpee — Maine C. B. Cantrell — Nebraska D. C. Cook — California B. J. Crawford — Georgia E. L. Creaser — New Brunswick, Canada W. E. Crider, Jr. — Vermont P. L. Dodge — Nova Scotia, Canada S. Donovan — Northwest Territories, Canada D. Eastman — Newfoundland and Labrador, Canada B. Fierheller — Manitoba, Canada C. Fulton — Alaska G. M. Given, Jr. — North Carolina M. Graham — Oregon R. J. Handy — Kentucky D. R. Hannon — Arkansas E. G. Hilton — Virginia I. M. Hinkle — South Dakota E. Hurd — British Colombia, Canada D. T. Jagger — Ohio D. J. Jenkins — Kansas A. P. Jones — Texas L. R. Kline — Pennsylvania M. R. Klosterman — Iowa K. J. Kraft — Maryland K. T. Lau — Alberta, Canada B. E. Logan — Massachusetts W. McGivney — New York S. V. Nelson — Colorado C. C. Novak — Illinois T. Oda — Washington W. R. Owens — Louisiana R. P. Pate — Alabama R. L. Perry — Nevada J. F. Porcella — West Virginia D. C. Price — Yukon Territories, Canada D. Pringnitz — Oklahoma R. S. Pucek — Wisconsin R. D. Reetz — North Dakota C. F. Reyes — California T. W. Rieger — Manitoba, Canada K. A. Rudolph — Hawaii M. J. Ryan — Illinois M. H. Sansone — New York T. S. Scholl — Ontario, Canada G. Scribner — Missouri C. S. Selinger — Saskatchewan, Canada R. Spiker — North Carolina T. Stewart — Montana R. K. Sturm — Utah S. R. Townsend — Prince Edward Island, Canada W. Vallance — Michigan M. J. Verhagen — Wisconsin M. Washington — New Jersey K. L. Watson — Mississippi R. W. Whitman, Jr. — Delaware D. J. Willis — Indiana ADMINISTRATIVE COMMITTEE J. G. Feldstein, Chair T. P. Pastor, Vice Chair J. S. Brzuszkiewicz, Staff Secretary R. W. Barnes J. E. Batey T. L. Bedeaux D. L. Berger J. F. Henry INTERNATIONAL INTEREST REVIEW GROUP U. R. Miller G. C. Park M. D. Rana B. F. Shelley W. J. Sperko V. Felix Y.-G. Kim S. H. Leong W. Lin O. F. Manafa C. Minu T. S. G. Narayannen Y.-W. Park R. Reynaga P. Williamson PROJECT TEAM ON HYDROGEN TANKS A. P. Amato, Staff Secretary F. L. Brown D. A. Canonico D. C. Cook J. Coursen J. W. Felbaum N. L. Newhouse A. S. Olivares G. B. Rawls, Jr. B. F. Shelley J. R. Sims, Jr. N. Sirosh J. H. Smith S. Staniszewski T. Tahara D. W. Treadwell E. Upitis C. T. I. Webster W. Yoru R. C. Biel, Contributing Member M. Duncan, Contributing Member D. R. Frikken, Contributing Member L. E. Hayden, Jr., Contributing Member K. T. Lau, Contributing Member K. Nibur, Contributing Member K. Oyamada, Contributing Member C. H. Rivkin, Contributing Member C. San Marchi, Contributing Member B. Somerday, Contributing Member Subgroup on General Requirements (BPV I) R. E. McLaughlin, Chair T. E. Hansen, Vice Chair F. Massi, Secretary P. D. Edwards W. L. Lowry E. M. Ortman J. T. Pillow D. Tompkins S. V. Torkildson D. E. Tuttle M. Wadkinson R. V. Wielgoszinski D. J. Willis C. F. Jeerings, Contributing Member Subgroup on Heat Recovery Steam Generators (BPV I) T. E. Hansen, Chair S. V. Torkildson, Secretary J. L. Arnold J. P. Bell B. G. Carson L. R. Douglas J. Gertz G. B. Komora C. T. McDaris B. W. Moore Y. Oishi E. M. Ortman R. D. Schueler, Jr. D. Tompkins B. C. Turczynski COMMITTEE ON POWER BOILERS (BPV I) F. Massi P. A. Molvie Y. Oishi E. M. Ortman J. T. Pillow B. W. Roberts R. D. Schueler, Jr. J. M. Tanzosh D. E. Tuttle R. V. Wielgoszinski D. J. Willis G. Ardizzoia, Delegate H. Michael, Delegate D. N. French, Honorary Member T. C. McGough, Honorary Member R. L. Williams, Honorary Member Subgroup on Design (BPV I) P. A. Molvie, Chair J. Vattappilly, Secretary D. I. Anderson P. Dhorajia J. P. Glaspie G. B. Komora J. C. Light B. W. Moore D. A. Olson Subgroup on Locomotive Boilers (BPV I) L. Moedinger, Chair S. M. Butler, Secretary P. Boschan J. Braun R. C. Franzen, Jr. D. W. Griner S. D. Jackson M. A. Janssen S. A. Lee G. M. Ray J. E. Rimmasch R. D. Schueler, Jr. R. B. Stone M. W. Westland W. L. Withuhn R. Yuill R. D. Reetz, Contributing Member Subgroup on Materials (BPV I) G. W. Galanes, Chair K. K. Coleman, Vice Chair J. S. Hunter, Secretary S. H. Bowes D. A. Canonico P. Fallouey K. L. Hayes J. F. Henry O. X. Li J. R. MacKay F. Masuyama D. W. Rahoi B. W. Roberts J. M. Tanzosh J. Vattappilly R. D. Schueler, Jr. S. V. Torkildson M. Wadkinson Subgroup on Piping (BPV I) C. F. Jeerings, Contributing Member D. Tompkins, Chair B. Mollitor, Secretary D. L. Berger J. A. Byers P. D. Edwards G. W. Galanes T. E. Hansen T. G. Kosmatka W. L. Lowry F. Massi Subgroup on Fabrication and Examination (BPV I) J. T. Pillow, Chair J. L. Arnold, Secretary G. W. Galanes, Secretary D. L. Berger S. W. Cameron K. Craver G. T. Dunker P. F. Gilston J. Hainsworth T. E. Hansen C. T. McDaris R. E. McLaughlin R. J. Newell Y. Oishi R. V. Wielgoszinski Subgroup on Solar Boilers (BPV I) J. S. Hunter, Chair S. V. Torkildson, Secretary G. W. Galanes R. E. Hearne D. J. Koza J. C. Light Y. Magen F. Massi M. J. Slater J. T. Trimble, Jr. --`,``,``,,`,````,,,,,`````,`,,`-`-`,,`,,`,`,,`--- D. L. Berger, Chair R. E. McLaughlin, Vice Chair U. D'Urso, Staff Secretary J. L. Arnold S. W. Cameron D. A. Canonico K. K. Coleman P. D. Edwards P. Fallouey J. G. Feldstein G. W. Galanes T. E. Hansen J. F. Henry J. S. Hunter W. L. Lowry J. R. MacKay