Description Reddish-brown to pale yellow, clear oily liquid,suspension with
smaller crystalline is permitted. With special taste and smell.
Identification
A: Color reaction with HNO3 Positive
B: Main peak in GC The retention time of the principal peak in the test solution
conforms to which in the reference solution
Specific rotation [α]20℃ ≥+20°
Acid Value ≤1.0ml
Heavy metals ≤10ppm Arsenic ≤3ppm
Assay
Total Tocopherols ≥50%
The percentage of d-（β+γ+δ）-tocopherol in total tocopherol ≥80%
Microbial test
Total plate count ≤1000cfu/g
Moulds and yeasts ≤100cfu/g
E.coli ＜90MPN/100g. Salmonella N.A. Staphylococcus N.A.