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See Chinese contents: GB/T 23277-2009 GB/T 23277-2009: Chemical analysis methods of catalysts containing precious metals -- Determination of platinum, palladium and rhodium in automobile exhaust-purifying catalysts -- Spectrophotometry
This Standard specifies the determination method of platinum, palladium and rhodium in automobile exhaust-purifying catalysts. This Standard applies to the determination of platinum, palladium and rhodium content in new and expired automobile exhaust-purifying catalysts. The determination range is 20g/t~5000g/t for Pt, Pd, 20g/t~600g/t for Rh.
