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See Chinese contents: QB/T 2317-2012 QB/T 2317-2012: Oral care and cleansing products. Crude calcium carbonate for toothpaste
This Standard specifies the requirements, test methods, inspection rules and marking, package, transportation, storage, shelf life of crude calcium carbonate for toothpaste. This Standard is applicable to the crude calcium carbonate for toothpaste through water washing, drying, and processed by Raymond mill.
