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GB/T 8979-2008 English PDF (GBT8979-2008)

GB/T 8979-2008 English PDF (GBT8979-2008)

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GB/T 8979-2008: Pure nitrogen and high purity nitrogen and ultra-pure nitrogen
This Standard specifies the technical requirements, test methods, as well as packaging, marking, storage, safety warning of pure nitrogen, high purity nitrogen and ultra pure nitrogen products. This Standard applies to gaseous or liquid pure nitrogen, high purity nitrogen and ultra-pure nitrogen obtained from air separation or purification. They are mainly used as the protective gas, replacement gas, reaction gas, etc. Molecular formula: N2. Relative molecular mass: 28.1034 (according to relative atomic mass in 2005).

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