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Overview ISO 1452-4:2009 defines requirements for PVC‑U (unplasticized polyvinyl chloride) valves used in plastics piping systems for water supply and for buried and above‑ground drainage and sewerag…
Overview - ISO 14524:2009 (OECF) ISO 14524:2009, "Photography - Electronic still‑picture cameras - Methods for measuring opto‑electronic conversion functions (OECFs)," defines standardized methods to…
Overview EN ISO 1452-4:2009 specifies the characteristics and test parameters for valves made from unplasticized poly(vinyl chloride) (PVC‑U) used in plastics piping systems for water supply and for…
