This document specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of trimethyl orthoformate. This document applies to trimethyl orthoformate, which is obtained by neutralization reaction and distillation using anhydrous formic acid and hydrogen chloride as the main raw materials. It is mainly used in organic synthesis and intermediates for piperazine drugs, photosensitive materials, advanced paints, etc. . Molecular formula: HC(0CH3)3 Relative molecular mass: 106.12 (according to the 2016 international relative atomic mass)