This standard specifies the requirements, test methods, inspection rules, signs, labels, packaging, transportation, storage and safety of industrial nitric acid dilute nitric acid (referred to as "dilute nitric acid", the same below). This standard applies to dilute nitric acid. This product is mainly used as raw material and oxidant for preparing nitrate. Molecular formula: HNO3 Relative molecular mass: 63.02 (according to the international relative atomic mass in 1999)