SUPPLEMENTAL AGENDA BPV III Special Committee on Interpretations November 4, 2015

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1 Two Park Avenue New York, NY U.S.A. tel fax SUPPLEMENTAL AGENDA BPV III Special Committee on Interpretations November 4, Hunter, Steve (MFE) ASME BPVC Section III, Division 1, NG-5130 November 2015: Hunter, Steve (MFE) ASME BPVC Section III, Division 1, NB-6000, Hydrostatic test after cladding repair November 2015: Antaki, George (SG CD, WG Piping) ASME BPVC Section III, Division 1, NB , Cold Springing November 2015: The inquirer was advised on 10/28/2015 that the request would need to be reworded before being sent to the committee for consideration. PENDING response from inquirer Antaki, George (SG CD, WG Piping) ASME BPVC Section III, Division 1, NB (d) and (e) (2013 Edition) November 2015: MFE, CD and HDPE Matls ASME BPVC Section III, Code Case N November 2015: Hunter, Steve, (MFE) ASME BPVC Section III, Subsection NB November 2015: Hunter, Steve, (MFE) ASME BPVC Section III, Subsection NB , Impact Tests November 2015: 28

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5 NOTE: ALL WELDS ARE FULL-PENETRATION WELDS T 1 IS THE THICKNESS OF THE BASE MATERIAL T 2 T 2 =T 1 T 1 T 1 =Thickness less than 1 T 2 =Thickness less than 1 T 1 IS THE THICKNESS OF THE BASE MATERIAL AT THE WELD JOINT T 1 T 2 T 1 T 1 =Thickness less than 1 T 2 =Thickness of 1 or greater T 1 IS THE THICKNESS OF THE THINNER BASE MATERIAL BEING JOINED AT THE WELD JOINT T 3 > T 2 > T 1 T 1 T 3 T 2 T 1 =Thickness less than 1 T 2 =Thickness of 1 or greater T 3 =Thickness of 1 or greater Page 5 of 30

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17 Joshua Taylor 1600 Riviera Avenue Suite 300 Walnut Creek, CA October 20 th, 2015 Secretary ASME Boiler and Pressure Vessel Committee Three Park Avenue New York, NY Dear Secretary, Purpose: Code interpretation Background: Minimum value requirements for peak stress indices and fillet or partial penetrated branch connections are provided by ASME BPV Section III Division I subsection NB (d) and NB (e) as given below: NB (d): K2r C2r shall be a minimum of 2.65 NB (e) (5): C2b K2b shall be a minimum of 6.0 NB (e) (6): C2r K2r shall be a minimum of 4.2 Page 17 of 30

18 Appropriate evaluation of minimum value requirement 1. The value obtained from the product of K2r and C2r shall be a minimum of 2.65 for NB (d)? Proposed reply: Yes 2. The value obtained from the product of un-factored C2b and K2b shall be a minimum of 6.0 for NB (e) (5)? Proposed reply: Yes Page 18 of 30

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25 ASME Section III Secretary ASME Boiler and Pressure Vessel Committee Three Park Avenue New York, NY October 30, 2015 Page 1 of 3 Subject: Demonstration Scope of Written Procedure for Nondestructive Examination Reference: 1) ASME Boiler and Pressure Vessel Code, Section III, Subsection NB, NB-2500 and NB-5112, 1995 Edition through 1997 Addenda 2) ASME Boiler and Pressure Vessel Code, Section V, T-150 (c) 1995 Edition through 1997 Addenda Purpose: Code Interpretation Inquiry : Is it a requirement of Code that nondestructive examination procedure for Nuclear Material Organization Certification Program shall be demonstrated to prove procedure s capability to the satisfaction of NDE Level III in lieu of Inspector? Proposed Response: No Page 25 of 30

26 Background: Page 2 of 3 ASME Section V, T-150 (c) specify that When required by the referencing Code Section, all nondestructive examinations performed under this Code Section shall be done to a written procedure. This procedure shall be demonstrated to the satisfaction of the Inspector. Also the Section III, NB 5112, which is the referencing Code Section for nondestructive examination of fabrication, specify that All nondestructive examinations required by this Article shall be performed in accordance with detailed written procedure which have been proven by actual demonstration to the satisfaction of the Inspector. Therefore, Nuclear Component Certificate Holder except for NS Certificate Holder shall demonstrate written nondestructive examination procedure to the satisfaction of the Inspector. However, the Section III, NB-2500 which is the referencing Code Section for nondestructive examination of material does not specify any requirement for actual demonstration of nondestructive examination to the satisfaction of the Inspector or the NDE Level III. Code Reference: ASME Section V, Article 1 T-150 PROCEDURE (c) When required by the referencing Code Section, all nondestructive examinations performed under this Code Section shall be done to a written procedure. This procedure shall be demonstrated to the satisfaction of the Inspector. The procedure or method shall comply with the applicable requirements of this Section for the particular examination method. Where so required, written procedures shall be made available to the Inspector on request. At least one copy of each procedure shall be readily available to the Manufacturer s Nondestructive Examination Personnel for their reference and use. ASME Section III NB-2500 EXAMINATION AND REPAIR OF PRESSURE RETAINING MATERIAL NB-2541 Required Examination (a) Forgings and bars shall be examined by the ultrasonic method in accordance with NB-2542, except forgings or sections of forgings which have coarse grains, or configurations which do not yield meaningful examination results by ultrasonic methods, shall be examined by radiographic methods in accordance with Section V, Article 2, using the acceptance standards of NB In addition, all external surfaces and accessible internal surfaces shall be examined by a magnetic particle method (NB-2545) or a liquid penetrant method (NB-2546). NB-2542 Ultrasonic Examination NB Examination Procedure. All forgings in the rough-forged or finished condition, and bars, shall be examined in accordance with Article 5 of Section V and the following supplemental requirements. The techniques of (a) through (d) below are required, as applicable. Page 3 of 3 Page 26 of 30

27 NB-2545 Magnetic Particle Examination NB Examination Procedure. The procedure for magnetic particle examination shall be in accordance with the method of Article 7, Section V. NB-2546 Liquid Penetrant Examination NB Examination Procedure. The procedure for liquid penetrant examination shall be in accordance with the method of Section V, Article 6. ASME Section III NB-5000 EXAMINATION NB-5112 Nondestructive Examination Procedures All nondestructive examinations required by this Article shall be performed in accordance with detailed written procedures which have been proven by actual demonstration to the satisfaction of the Inspector. The procedures shall comply with the appropriate Article of Section V for the particular examination method. The digitization of radiographic film and radioscopic images shall meet the requirements of Section V, Article 2, Mandatory Appendix III, Digital Image Acquisition, Display, and Storage for Radiography and Radioscopy. Written procedures and records of demonstration of procedure capability and personnel qualification shall be made available to the Inspector on request. At least one copy of the procedure shall be readily available to all applicable nondestructive examination personnel for reference and use. Sincerely yours, Jong-in Kim DOOSAN Page 27 of 30

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