{"operation":"document","citation":"06-0064","title":"Catalina Cylinders — Hazardous Materials Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2006-05-23","effective_on":null,"summary":"06-0064 response to Catalina Cylinders concerning 173.302.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0064.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0064.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-06-0064","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060064.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nof Transportation\n400 Seventh Street, S.W.\nWashington, D.C. 20590\nPipeline and\nHazardous Materials Safety\nAdministration\nMAY 23 2006\nMr. E.A. Ward Dekker, Jr.\nRef. No. 06-0064\nQA Manager\nCatalina Cylinders\n12452 Monarch Street\nGarden Grove, California 92841\nDear Mr. Dekker:\nThis responds to your inquiry (facsimile) regarding the manufacture of a DOT 3AL\ncylinder for oxygen enriched air, air with oxygen content greater than 22-23%, under the\nHazardous Materials Regulations (HMR; 49 CFR Parts 171-180).\nYour questions are paraphrased and answered as follows:\nQ1. Do aluminum cylinders for oxygen enriched air have to conform to § 173.302(b)?\nAl.\nGas mixtures with oxygen concentrations greater than 23.5% should be\nconsidered to cause or contribute to combustion of other material to a greater\nextenting, nos and must me lasted and descrid is Divisiose zas,\n(nonflammable gas) primary hazard and a Division 5.1 (oxidizer) subsidiary\nhazard. If the oxygen concentration is greater than 23.5%, then the conditions\nspecified in § 173.302(b) must be met.\nQ2. Must a residual hydrocarbon test be performed?\nA2.\nYes. The cylinders must conform to the cleanliness standards in Federal\nSpecification RR-C 901C, paragraph 4.4.2.2.\nQ3.\nMust the cylinder be designed to a maximum service pressure of 3000 psi?\n173.302 (b)\n060064\n\n<<<PAGE 2>>>\n\nA3.\nNo, the cylinder may have a higher marked service pressure. The pressure in each\ncylinder may not exceed 3000 psi at a temperature of 21°C (70°F). Also, see\n§ 173.301(a)(8).\nI hope this satisfies your inquiry. If we can be of further assistance, please contact us.\nSincerely,\nJohn'A. Gale\nOffice of Hazardous Materials Standards\nChief, Standards Development\n\n<<<PAGE 3>>>\n\nPage 1 of 2\nDrakeford, Carolyn <PHMSA>\nFrom: Mitchell, Hattie <PHMSA>\nSent:\nTuesday, March 14, 2006 7:56 AM\nEngrum\nTo:\nStaniszewski, Stanley <PHMSA›; Drakeford, Carolyn <PHMSA>\n$173.302(6)\nCo:\nHochman, Charles <PHMSA>\nSubject: FW: Oxygen Enriched Air Aluminum SCUBA Cylinders Interpretation Please\nCylinders\nStan: Yes, will do.\nCarolyn: please log in as an interp.\n06-0064\nThanks,\nHattie\nSent: Tuesday, March 14, 2006 7:40 AM\nFrom: Staniszewski, Stanley <PHMSA>\nTo: Mitchell, Hattie < PHMSA>\n<PHMSA>\nCc: Hochman, Charles <PHMSA>; Freeman, Cheryl <PHMSA>; Toughiry, Mark <PHMSA>; Staniszewski, Stanley\nSubject: FW: Oxygen Enriched Air Aluminum SCUBA Cylinders Interpretation Please\nThanks,\nStan\nFrom: Ward Dekker [mailto:wdekker@catalinacylinders.com]\nTo: Staniszewski, Stanley <PHMSA>\nSent: Mon 3/13/2006 1:56 PM\nCc: John Harris; Tom Newell\nSubject: Oxygen Enriched Air Aluminum SCUBA Cylinders Interpretation Please\nStan,\nIf this inquiry for inerpretation should go to someone else, let me know.\nAs you know Catalina Cylinders manufactures 6061 aluminum cylinders in accordance with 49 CFR178.46.\nFor oxygen cylinders we manufacture the cylinders in compliance with 49 CFR173.302(b).\nWe manufacture SCUBA cylinders for air use. In some cases, the cylinders are being charged and used with\noxygen enriched air, air with O2 content greater than 22 - 23%.\nHere's my interpretation request.\n49CFR173.302(b)?\n1. Do aluminum cylinder that are manufactured for oxygen enriched air have to manufactured im accordance with\n3/14/2006\n\n<<<PAGE 4>>>\n\nPage 2 of 2\nMeaning,\na. Must a residual hydrocarbon test be performed? and\nb. Must the cylinders be designed to a maximum service pressure of 3000 psi?\nRegards,\nQA Manager\nE.A. Ward Dekker, Jr.\n714 890-0999\nCatalina Cylinders / Garden Grove Facility\n3/14/2006","truncated":false,"body_characters":3542}