This Korean Industrial Standard specifies the unplasticized polyvinyl chloride pipes and the impact resistant unplasticized polyvinyl chloride pipes (hereinafter referred to as "pipes"), for waterworks to be used under hydrostatic head not more than 0.75MPa {7.6kgf/cm2}.
Remark 1. The unit and numerical values given in parenthesis in this Standard are based on the traditional units, and appended for informative reference. 2. Normative references to this Standard are as shown in the Attached Table.