{"operation":"document","citation":"PI-75-017","title":"Ball Engineering Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1975-05-01","effective_on":null,"summary":"PI-75-017 response to Ball Engineering Company concerning 192.719.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-017.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-017.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-75-017","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1975/PI75017.pdf","body":"<<<PAGE 1>>>\n\nMay 1, 1975\nMr. Robert Buss\nBall Engineering Company\nConsulting Engineers\nCenterville, Iowa\nDear Mr. Buss:\nThis responds to your letter of March 22, 1975, asking several questions regarding 49 CFR Part\n192.\nQuestion 1: Does the exception from the requirement for non-destructive testing of welds under\nSection 192.241(b) for pipe less than 6 inches in nominal diameter also apply to field girth butt\nwelds which must be tested under Section 192.719(a)(2)?\nAnswer: Section 192.241(b) provides limited exceptions from the requirement that all welds on\nnewly installed, replaced, or relocated pipe to be operated at 20 percent or more of SMYS, be\nnon-destructively tested. In contrast, Section 192.719(a)(2) specifically requires strength or non-\ndestructive testing for field girth butt welds made in repairing a transmission line by cutting out\ndamaged pipe as a cylinder and replacing it. This specific requirements for testing a repair weld\nwas established without exception because of the greater need to ensure weld quality.\nQuestion 2: Does Section 192.503(d) refer to pressure testing only of welds?\nAnswer: Section 192.503(d) provides that the leak and strength test requirements for pipelines\nunder Subpart J do not apply to welds used to tie-in a segment of pipeline being tested.\nQuestion 3: Does a pressure test made on replacement pipe before it is installed, as permitted by\nSection 192.719(a)(2), satisfy the requirement of Section 192.619(a)(2)(ii) that in establishing a\nmaximum allowable operating pressure for certain pipe, a pressure test be made \"after\nconstruction?\"\nAnswer: Because the requirements of Sections 192.619(a)(2)(ii) and 192.719(a)(2) apply in\nconjunction, a pressure test permitted by Section 192.719(a)(2) to be made before installation\nmust necessarily qualify as the test required by Section 192.619(a)(2)(ii). At the same time,\nSection 192.719(a)(2)\ndal\\192\\719\\75-05-01\n1\n\n<<<PAGE 2>>>\n\nprovides that any field girth butt weld which is not strength tested in the pre-installation testing\nprocess must be non-destructively tested after installation in accordance with Section 192.243.\nAs you requested, we have enclosed a copy of Advisory Bulletin No. 74-7.\nThank you for your interest in pipeline safety.\nSincerely,\nJoseph C. Caldwell\nDirector\nOffice of Pipeline Safety\nEnclosure\ndal\\192\\719\\75-05-01\n2","truncated":false,"body_characters":2355}