This standard specifies the requirements, test methods, inspection rules, marking, labeling and packaging, transportation and storage of industrial calcium nitrate. This standard applies to industrial calcium nitrate, which is mainly used in steel phosphating liquid, pyrotechnic raw materials, electronics industry, etc. It can also be used as nitrogen fertilizer or fertilizer for soilless cultivation. Molecular formula: Ca(NO)·4HO Relative molecular mass: 236.14 (according to the 2001 international relative atomic mass)