{"operation":"document","citation":"PI-89-009","title":"Long Island Lighting Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1989-06-09","effective_on":null,"summary":"PI-89-009 response to Long Island Lighting Company concerning 192.283.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-89-009.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-89-009.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-89-009","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1989/PI89009.pdf","body":"<<<PAGE 1>>>\n\nJune 9, 1989\nMr. Ellen Bardenhagen\nGas Engineering Department\nLong Island Lighting Company\n175 East Old Country Road\nHicksville, New York 11801\nDear Ms. Bardenhagen:\nThank you for your letter requesting clarification of the requirements for qualifying mechanical\njoining methods for plastic pipe. We understand your question to be whether the word \"material\"\nas used in §192.283(b)(7) refers to any class of plastic polymers (e.g., 2306 polyethylene) or to a\nspecific polymer within a class used by a particular pipe manufacturer.\nThe qualification of a mechanical joining method depends on the tensile strength of the pipe\nmaterial under load, as opposed to the physical-chemical properties that are pertinent for other\njoining methods (e.g., heat fusion, solvent cement). Since each class has a minimum tensile\nstrength, a class of plastic polymers suffices to describe the material for which a mechanical\njoining method is qualified. Therefore, test information that qualifies a mechanical joining method\nfor use on one manufacturer's pipe made from a specific polymer in a class would also qualify that\nmethod for use on any other manufacturer's pipe made from any other polymer in that class.\nI hope that this discussion has clarified the issue for you. If you have any further questions, please\ncontact me.\nSincerely,\nRichard L. Beam\nDirector\nOffice of Pipeline Safety\ndal\\192\\283\\89-06-09\n1","truncated":false,"body_characters":1411}