Search results
Results from the WOW.Com Content Network
They may be used until they fail test or inspection. Three cylinders from each batch are pulsation hydrostatically tested for 10,000 cycles from 0 to test pressure at 12 cycles per minute. An alternative test approved by the US Department of Transportation is 100,000 cycles from 0 to working pressure.
CFR Title 49 - Transportation is one of fifty titles comprising the United States Code of Federal Regulations (CFR). Title 49 is the principal set of rules and regulations (sometimes called administrative law) issued by the Departments of Transportation and Homeland Security, federal agencies of the United States regarding transportation and transportation-related security.
ISO 11439: Gas cylinders — High-pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles [28] ISO 15500-5: Road vehicles — Compressed natural gas (CNG) fuel system components — Part 5: Manual cylinder valve [29] [30] US DOT CFR Title 49, part 178, Subpart C — Specification for Cylinders [31]
DOT-3AA gas cylinders must be tested every 5 years and have an unlimited life. (Unless stamped with a star (*) in which case the cylinder meets certain specifications and can have a 10-year hydrostatic test life). Typically organizations such as DOT PHMSA, ISO, ASTM and ASME specify the guidelines for the different types of pressure vessels.
The Pipeline and Hazardous Materials Safety Administration (PHMSA) is a United States Department of Transportation agency created in 2004, responsible for developing and enforcing regulations for the safe, reliable, and environmentally sound transportation of energy and other hazardous materials.
Regulations are enforced by use of compliance orders, civil penalties, and injunctive relief, [8] under the discretion of the Secretary of Transportation. As the Act stands now (with its latest amendments), the Department of Transportation (DOT) is most concerned with the test conditions of packages, rather than the transportation conditions.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
They are the U.S. counterpart to the UN Regulations developed by the World Forum for Harmonization of Vehicle Regulations and recognized to varying degree by most countries except the United States. Canada has a system of analogous rules called the Canada Motor Vehicle Safety Standards ( CMVSS ), which overlap substantially but not completely ...