Download or read book GB T 8979 2008 Translated English of Chinese Standard GBT 8979 2008 GB T8979 2008 GBT8979 2008 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2014-11-20 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).