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ISO 22476-14:2020 EN
Geotechnical investigation and testing — Field testing — Part 14: Borehole dynamic probing
现行
发布日期 :
2020-02-19
实施日期 :
ISO 21138-3:2020 EN
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
现行
发布日期 :
2020-01-20
实施日期 :
ISO 21138-2:2020 EN
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 2: Pipes and fittings with smooth external surface, Type A
现行
发布日期 :
2020-01-20
实施日期 :
ISO 21138-1:2020 EN
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 1: Material specification and performance criteria for pipes, fittings and systems
现行
发布日期 :
2020-01-20
实施日期 :