Unplasticized polyvinyl chloride (PVC-U) pipes and fittings for drinking water supply--Extractability of leadtincadmium and mercury occurring as impurities--Test method and permitted levels
NORM herausgegeben am 8.7.1988
Designation standards: GB 9644-1988
Note: UNGÜLTIG
Publication date standards: 8.7.1988
Country: Chinese technical standard
Kategorie: Technische Normen GB