Industrial gradeUsed for deicing, desiccant, dust control, drilling, water treatment and general industrial processing. COA and SDS are usually the first documents to review.
Food gradeRequires food-related specifications and buyer-side confirmation of allowed use, labeling, additives and destination-market import rules.
USP / pharmaceutical-related gradeNot the same as food grade. USP or pharma-related use requires a stricter standard review, batch document review and clear end-use confirmation.
REACH / EU-related reviewREACH applicability depends on importer role, annual volume, exact substance identity, use and EU compliance responsibilities.