Implementing Guidelines for the Issuance of PS Certification Mark for uPVC Electrical Conduit

Implementing Guidelines for the Issuance of Philippine Standard (PS) Quality Certification Mark License for Unplasticized Polyvinyl Chloride (uPVC) Conduit covered by PNS 14:1983 Amd. 1:1987, Unplasticized polyvinyl chloride (uPVC) electrical conduit - Specification