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See Chinese contents: GB/T 19138-2003 GB/T 19138-2003: Testing method of material insoluble in acetone for pesticides
This Standard specifies the determination of acetone material insoluble in pesticide original drug products. Method summary -- An appropriate amount of sample is dissolved with acetone. The insoluble is filtered hot and dried. Acetone insoluble content is calculated as the mass fraction of solid insoluble.
