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See Chinese contents: GB/T 28019-2011 GB/T 28019-2011: Adornment -- Determination of Chromium (VI). 1, 5-Diphenylcarbohydrazide spectrophotometric method
This standard specifies the 1,5-Diphenylcarbohydrazide spectrophotometric method for Chromium (VI). This Standard applies to the determination of Chromium (VI) in adornment.
