A chemical grade of sufficient purity to meet or exceed requirements of the U.S. Pharmacopeia (USP); acceptable for food, drug, or medicinal use; may be used for most laboratory purposes.
2. Reagent
High purity generally equal to A.C.S. grade and suitable for use in many laboratory and analytical applications.
1. A.C.S.
A chemical grade of highest purity and meets or exceeds purity standards set by American Chemical Society (ACS).