This standard specifies the technical requirements, test methods, inspection rules and labeling, packaging, storage and transportation of feed additive 1% β-carotene products. This standard applies to products containing 1% β-carotene obtained from starch and soybean cake powder as main raw materials through microbial fermentation, cultivation, drying and crushing. Chemical name: (all-E)-1,1'-(3,7,12,16-tetramethyl)-(1,3,5,7,9,11,13,15,17-octadecyl Nonene-1,18-diyl)bis(2,6,6-trimethylcyclohexene) Molecular formula: C40H56 Relative molecular mass: 536.88 (1999 international relative atomic quality)