This standard specifies the requirements, test methods, inspection rules, signs, labels, packaging, transportation, storage and safety of industrial sodium cyanide. This standard applies to industrial solid sodium cyanide and sodium cyanide solution. The product is mainly used in chemical industry, electroplating, metallurgy, ore dressing and as raw material in pharmaceutical industry. Molecular formula: NaCN Relative molecular mass: 49.01 (according to the international relative atomic mass in 1999)