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See Chinese contents: GB/T 17219-1998 GB/T 17219-1998: Standard for safety evaluation of equipment and protective materials in drinking water system
This standard applies to substances and products that are in direct contact with drinking water and drinking water treatment agents. These substances and products refer to the water distribution pipes, equipment and mechanical components used in drinking water supply systems (e.g., valves, chlorination dosage equipment, water treatment reagent addition device) and protective materials (such as paints, linings).
