Reports

• Nondestructive Inspection of High Pressure Aluminum Gas Cylinders
• Cover Page (pdf - 4K)


• Table of Contents (pdf - 39K)


• Final Report (pdf - 2,293K)


• Appendices (pdf - 49K)


• Cylinder Failure Analysis Reports


• Federal Register Notices & Rules
• Advisory: Aluminum Cylinders made of Aluminum Alloy 6351-T6 (pdf - 10K)


• PHMSA-01-10373 (HM-220D); Hazardous Materials: Requirements for Maintenance, Requalification, Repair and Use of DOT Specification Cylinders; Extension of Compliance Dates and Corrections; Final rule; extension of compliance dates and corrections; Published 09/30/2002; Effective Date: October 1, 2002; 67 FR 61287.



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• PHMSA-99-5143; Notice No. 99-11; TITLE: "Safety Advisory; High Pressure Aluminum Seamless and Aluminum Composite Hoop-Wrapped Cylinders"; Safety advisory notice correction; Published 11/1/99; 64 FR 58906.



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• PHMSA-99-5143; Notice No. 99-11; TITLE: "Safety Advisory; High Pressure Aluminum Seamless and Aluminum Composite Hoop-Wrapped Cylinders"; Safety advisory notice; Published 10/18/99; 64 FR 56243.



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• Notice No. 98-12; TITLE: "Safety Advisory; High Pressure Composite Cylinders"; Safety advisory notice; Published 12/14/98; 63 FR 68819.



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• Supplemental information regarding Notice 99-11 (pdf - 6K)


• Notice No. 94-7; Safety Advisory; High Pressure Aluminum Seamless and Aluminum Composite Hoop-Wrapped Cylinders; Safety advisory notice; Published 07/26/94; 59 FR 38028.



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• Notice No. 83-8;High Pressure Composite Hoop Wrapped Cylinders (4500 p.s.i.g. Marked Service Pressure; DOT-E 7235); Safety advisory notice; Published 03/24/93; 58 FR 15895.



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• HM-176A; DOT 3AL Aluminum Cylinders; Safety Problems; Safety advisory and advance notice of proposed rulemaking; Published 07/10/87; 52 FR 26027.



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• Notice No. 85-4;High Pressure Composite Hoop Wrapped Cylinders 4500 p.s.i.g. Marked Service Pressure; DOT-E 7235, Exemption related notice; Published 08/15/85; 50 FR 32944.



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• Notice No. 85-3;High Pressure Composite Hoop Wrapped Cylinders 4500 p.s.i.g. Marked Service; DOT-E 7235 Exemption related notice; Published 07/17/85; 50 FR 29038.



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• DOT-E 7235: High Pressure Composite, Hoop Wrapped Cylinders 4500 PSIG Marked Service Pressure; Published 11/01/1984; 49 FR 44047.



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• DOT-E 7235: Limit on Filling Pressure for High Pressure Composite Hoop Wrapped Cylinders Authorized by Exemption; Published 02/27/1984; 49 FR 7182.



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• High Pressure Composite Hoop Wrapped Cylinders (4500 PSIG Marked Service Pressure; DOT E-7235; Product Recall; Published 08/11/1983; 48 FR 36559.



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