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Overview ISO 10434:2020 specifies requirements for bolted bonnet steel gate valves intended for the petroleum, petrochemical and allied industries. The standard defines a heavy‑duty series of valves…
Overview ISO 1043-4:2021, "Plastics - Symbols and abbreviated terms - Part 4: Flame retardants," defines a uniform system of symbols and abbreviated terms to identify flame retardants incorporated in…
1 Scope This International Standard specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and…
Overview ISO 1043-4:2021/Amd 1:2026 is an important amendment to the ISO standard for plastics, focusing on the identification and designation of flame retardant components. Part of a series managed…