This standard specifies the standards for hygienic safety evaluation of water transmission/distribution equipment (water transmission/distribution pipes, equipment and mechanical components used in water supply system) and protective materials in drinking water system.
This standard is applicable to the materials or products that come into direct contact with drinking water and drinking water treatment chemicals. These materials or products refer to the water transmission/distribution pipes, equipment and mechanical components (such as valves, chlorinators and water treatment chemical feeders, etc.) as well as the protective materials (such as coatings and linings, etc.) used in drinking water supply system.