{"operation":"document","citation":"PI-78-015","title":"The Australian Gas Light Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1978-06-06","effective_on":null,"summary":"PI-78-015 response to The Australian Gas Light Company concerning 192.105.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-78-015.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-78-015.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-78-015","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1978/PI78015.pdf","body":"<<<PAGE 1>>>\n\nMr. C. B. Rumble\nThe Australian Gas Light Company\nP.O. Box 944\nNorth Sydney NSW 2060\nAustralia\nDear Mr. Rumble:\nThis responds to your letter of May 2, 1978, concerning the requirements of Section 192.105(b)\nof Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety\nStandards. This Section limits the design pressure of steel pipe that has been cold worked to meet\nSMYS to 75 percent of the pressure determined under Section 192.105(a) if the pipe is heated,\nother than by welding, to 600mF or more.\nThe term \"cold worked\" does not relate to thermo-mechanically rolled steel plate that is later\nmade into pipe. It does relate to pipe that has been \"cold expanded.\"\nThe 600mF limitation on the heating of such \"cold worked\" pipe was adopted directly from\nU.S.A.S. B31.8, Code for Pressure Piping, Gas Transmission and Distribution Piping Systems,\n1968 edition.\nIf we may assist further please let us know.\nSincerely,\n/signed/\nCesar DeLeon\nAssociate Director for\nPipeline Safety Regulation\nMaterials Transportation Bureau\nDB\nC:\\WP51\\INTERPRT\\192\\105\\78-06-06\n1\n\n<<<PAGE 2>>>\n\nThe Director,\nOffice of Pipeline Safety Operations,\nDepartment of Transportation\nMaterials Transportation Bureau,\n400, 6th Street, S.W.,\nWashington, D. C. 20590,\nU.S.A.\nDear Sir,\nMinimum Federal Safety Standards\nPart 192 Gas Pipelines\nAs a member of a Task Group working on the revision of certain sections of the Australian\nStandard AS2697, Gas Pipeline Code, on behalf of the Standards Association of Australia, I have\nbeen requested to contact your office for elucidation on Paragraph 192.105(b).\nWhilst the clause related to, appears specific in its intent, there are two questions I am requested\nto direct to you for assistance:\n1. Does the term \"cold worked\" also relate to thermo-mechanically (controlled rolled) steel\nplate, which is subsequently used for pipe manufacture and supplied as pipe in the \"non\nexpanded\" condition, or does it only relate to pipe in the \"cold expanded\" condition?\n2. Could you advise on the origin of the 600mF limitation on the heating of such \"cold\nworked\" pipe.\nTrusting that you are able to assist in this matter.\nYours faithfully,\nTHE AUSTRALIAN GAS LIGHT COMPANY,\nC. B. Rumble,\nChief Inspector - Engineering Division\nDB\nC:\\WP51\\INTERPRT\\192\\105\\78-06-06\n2\n\n<<<PAGE 3>>>\n\nC:WPS INTERPRT1921105178-06-06","truncated":false,"body_characters":2361}