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See Chinese contents: GB/T 18881-2017 GB/T 18881-2017: Catalyst for light-duty petrol vehicle exhaust purification
This Standard specifies the requirements, test methods, inspection rules, marks, packaging, transport, storage and quality certificate of catalyst for light-duty petrol vehicle exhaust purification. This Standard is applicable to the catalyst for light-duty petrol vehicle exhaust purification which uses cordierite honeycomb ceramic carrier as matrix and loads with rare earth, precious metal or other metal and other active components
