This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation, storage, etc. of tricresyl phosphate. This standard applies to tricresyl phosphate obtained by reacting mixed cresol with phosphorus trichloride or phosphorus oxychloride, followed by chlorination hydrolysis and vacuum distillation. This product is mainly used as plasticizers such as polyvinyl chloride and nitrocellulose. Molecular formula: (CH|(3)C|(6)H|(4) O)|(3)PO Relative molecular mass: 368.37 (according to the 1991 international relative atomic mass)