DS/ISO 21138-3:2020現行
Plastics piping systems for non-pressure underground drainage and sewerage – Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) – Part 3: Pipes and fittings with non-smooth external surface, Type B
出版：Danish Standards
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基本信息
標準編號： DS/ISO 21138-3:2020
出版單位：Danish Standards
標準頁數：0
標準簡介
This document, together with ISO 21138?1, specifies the definitions and requirements for pipes with a non-smooth external surface and a smooth internal surface (Type B), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications.
等同采用的國際標準
