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See Chinese contents: GB/T 13216-2008 GB/T 13216-2008: Test methods for glycerine
This standard specifies the sampling method of barreled glycerol, as well as the method for the determination of its transparency, odor, color, density at 20 ¡ãC, content, chloride limits, sulfated ash, acidity or alkalinity, saponification equivalent, arsenic limits, heavy metal limits, reduction substances.
