This standard specifies the definitions and symbols, types and basic parameters, materials, design, manufacturing, test methods, inspection rules as well as marking, packaging, transportation and storage requirements of welded gas cylinders (hereinafter referred to as cyclines).
This standard is applicable to vertical cylinders, with the storage medium of liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide and nitrous oxide cryogenic liquid, design temperature no less than -196℃, nominal volume of 10L~450L and service pressure of 0.2MPa~3.5MPa respectively, that are used under normal ambient temperature (-40℃~60℃) and may be filled repeatedly.
