T/ZZB 2391-2021 welding insulated gas bottle

Scope

Main technical content: This document specifies the terms and definitions, symbols, types and basic parameters, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and factory documents for welded insulated gas cylinders (hereinafter referred to as gas cylinders). This document is applicable to upright or horizontal gas cylinders that can be refilled repeatedly, which are used at normal ambient temperatures (-40 °C to 60 °C) and store media such as liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide, and nitrous oxide at low temperatures with a design temperature not exceeding -196 °C, a nominal volume of 10 L to 500 L, and a nominal working pressure of 0.2 MPa to 3.5 MPa. It is also applicable to upright or horizontal gas cylinders that can be refilled repeatedly, which are used at normal ambient temperatures (-40 °C to 60 °C) and store media such as liquefied natural gas (LNG) with a design temperature not exceeding -161.3 °C, a nominal volume of 150 L to 500 L, and a nominal working pressure of not less than 0.2 MPa. This document is not applicable to vehicle-mounted gas cylinders, nor to gas cylinders that store media such as liquid helium and liquid hydrogen.

Development Information

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