GB 9644-1988 Unplasticized polyvinyl chloride (PVC-U) pipes and fittings for drinking water supply--Extractability of lead tin、cadmium and mercury occurring as impurities--Test method and pemitted levels (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
Latest
GB 9644-1988
Scope
This standard specifies the extraction methods and allowable values of lead, tin, cadmium and mercury from rigid polyvinyl chloride (PVC-U) drinking water pipes. This standard is applicable to rigid polyvinyl chloride (PVC-U) pipes and fittings for transporting drinking water.
GB 9644-1988 history
1988GB 9644-1988 Unplasticized polyvinyl chloride (PVC-U) pipes and fittings for drinking water supply--Extractability of lead tin、cadmium and mercury occurring as impurities--Test method and pemitted levels