Yunnan Provincial Standard of the People's Republic of China
Latest
DB53/T 473-2013
Scope
This standard specifies the product classification, requirements, test methods, inspection rules, signs, labels, packaging, transportation and storage of polyphosphoric acid. This standard applies to polyphosphoric acid produced from industrial yellow phosphorus or phosphorus pentoxide and industrial phosphoric acid. This product is mainly used in organic synthesis, pharmaceuticals, spices, leather, chemical and other industries.