{"operation":"document","citation":"PI-86-003","title":"Florida Power & Light Company — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1986-04-21","effective_on":null,"summary":"PI-86-003 response to Florida Power & Light Company concerning 192.503.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-86-003.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-86-003.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-86-003","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1986/PI86003.pdf","body":"<<<PAGE 1>>>\n\nApril 21, 1986\nMr. John M. Stokes\nSupervisor, Oil & Gas\nFlorida Power & Light Company\nP.O. Box 029100\nMiami, Florida 33102\nDear Mr. Stokes:\nIn response to your letter of March 24, 1986, to Mr. Cesar DeLeon, Chief, Southern Region,\nOffice of Pipeline Safety, we have reviewed your request for waiver from §192.503(b)(3). This\nsection requires that a hydrostatic test of a natural gas pipeline must be done with a medium that\nis \"Except for natural gas, nonflammable.\"\nYour waiver request states that the intended test medium is No. 6 residual fuel oil having a\nminimum flash point of 150° F.\nIn defining the word \"nonflammable\" we rely upon the definition of \"flammable\" in 49 CFR Part\n173 - Shippers - General Requirements for Shipments and Packagings §173.115(a) Flammable,\ncombustible, and pyrophoric liquids; definitions. This section of the Hazardous Materials\nregulations defines flammable liquid as follows:\n§173.115 Flammable, combustible, and pyrophoric liquids; definitions. (a)\nFlammable liquid. (1) For the purposes of this subchapter a flammable liquid\nmeans any liquid having a flash point below 100° F. (37.8° C.), with the following\nexceptions:\n(i) Any liquid meeting one of the definitions specified in §173.300;\n(ii) Any mixture having one component or more with a flash point of 100° F., (37.8\n° C.) or higher, that makes up at least 99 percent of the total volume of the\nmixture;\n(2) For the purpose of this subchapter, a distilled spirit of 140 proof or lower is\nconsidered to have a flash point no lower than 73° F.\nAs a result, the No.6 fuel oil proposed for the hydrostatic test medium, which has a flash point\nwell above 100° F, is not considered flammable under the meaning of §192.503(b)(3) and may be\nused, for hydrotesting under this section without waiver.\ndal\\192\\503\\86-04-21\n1\n\n<<<PAGE 2>>>\n\nIt is our understanding that Mr. DeLeon informed you of this decision by telephone on April 16,\n1986. This letter is intended to confirm that call.\nThank you for your interest in pipeline safety.\nSincerely,\nRobert L. Paullin\nDirector\nPipeline Safety Regulation\ndal\\192\\503\\86-04-21\n2","truncated":false,"body_characters":2121}