{"operation":"document","citation":"04-0229","title":"Consultant au Service De La Pétrochimie — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2004-10-28","effective_on":null,"summary":"04-0229 response to Consultant au Service De La Pétrochimie concerning 173.121.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-04-0229.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-04-0229.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-04-0229","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2004/040229.pdf","body":"<<<PAGE 1>>>\n\nof Transportation\nU.S. Department\nOCT 28 2004\n400 Seventh St., S.W.\nWashington, D.C. 20590\nResearch and\nSpecial Programs\nAdministration\nMr. Eric-Michael Deschenes, PE\nRei No.\n04-0229\nUltragen\nConsultant au Service De La Pétrochimie\n2117 Fernand-Lafontaine\nLongueuil (Québec)\nJ4G 2J4\nCanada\nDear Mr. Deschenes:\nThis is\nin response to your September 29, 2004 letter\nrequesting clarification on an appropriate test method under\n§ 173.121 to determine the packing group of a flammable liquid\nunder the Hazardous Materials Regulations (HMR; 49 CFR Parts\n171-180) • Specifically, you ask which test method must be\nused to determine the initial boiling point of a flammable\nliquid.\nThe HMR do not specify a particular test method.\nTherefore,\nany test method that can accurately\n• determine the initial\nboiling point of a flammable liquid\nmay be used to determine\nthe packing group under § 173.121(a). The Organization for\nEconomic Cooperation and Development (OECD) Guideline for the\nTesting of Chemicals, No. 103 \"Boiling Point\" outlines seven\npossible test methods for determining boiling point of a\nliquid.\nI hope this information is helpful. Please contact us if you\nrequire additional assistance.\nSincerely,\nHitle enth l\nHattie I. Mitchell\nOffice of Hazardous Materials\nChief, Regulatory Review and Reinvention\nStandards\n173:121\n040229\n\n<<<PAGE 2>>>\n\nPollack\n$173.121\nULTRAGEN\nApplicability\nLongueuil (Québec\n2117 Fernand-Lafontaine\nCONSULTANT AU SERVICE DE LA PÉTROCHIMIE\n04-0229\nJ4G 2J4\nTéléphone :\nFax:\n(450) 677-6364\n(450) 674-3852\nLongueuil, September 29\", 2004\nEdward Mazzullo\nUS DOT/RSPA (DHM-10)\nDirector, Office of Hazardous Materials Standards\n400 7* Street SW\nWashington DC, 20590-0001\nOBJECT : INTERPRETATION OF CFR 49 173.121\nMr. Mazzullo,\nI have tried (to no avail) to find a definition or a reference to a standard test method for\ndetermining the Initial Boiling Point (or IBP) of a flammable liquid according to 49 CFR\ngroup of Class 3 flammable liquids. Although the definition of Flash Point is made quite\n173.121. This criterion, along with the Flash Point, is used in assessing the packing\nclear in the regulations, that of the initial boiling point is left to interpretation. Could you\nplease provide the test method which is implicitly referred to in defining the cut-point\nbetween packing groups I and I (namely IBP<95F for group I and >95F for group II).\nMany thanks for the anticipated clarification,\nBest regards,\nno\nErc-Michel Deschenes, PE\nProcess Engineering Group\nUltragen\ntel: 450-677-6364\nfax:450-674-3852\neric.deschenes@ultragen.com","truncated":false,"body_characters":2577}