This standard specifies the product specifications, technical requirements, test methods, inspection rules and requirements for marking, packaging, transportation and storage of feed additive vitamin A/D3 particles. This standard applies to vitamin A acetate crude oil and vitamin D3 crude oil with a content of more than 1.3 million IU/g as raw materials, with a certain amount of BHT and ethoxyquin as stabilizers, gelatin and starch And other excipients, microparticles made by spraying method, each gram contains vitamin A acetate (C12H32O2) and vitamin D3 (C27H44O) in a ratio of 5:1, and its content should be more than 85% of the labeled amount. This product is used as a vitamin feed additive in the feed industry.