This standard specifies the type and parameters, technical requirements, test methods, inspection rules, and requirements for marking, coating, packaging, transportation and storage of aluminum alloy seamless gas cylinders (hereinafter referred to as aluminum cylinders). This standard applies to the design and manufacture of mobile aluminum alloys with a nominal working pressure of 1-30Mpa, a nominal volume of 0.4-50L, a permissible temperature not exceeding 60 degrees Celsius, and the ability to repeatedly hold permanent or liquefied gases that are chemically stable to aluminum alloys. bottle.