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1 Scope This International Standard specifies requirements for design, materials (e.g. steel, cast iron, ductile iron, copper alloy), pressure/temperature ratings and testing for butterfly valves hav…
Overview ISO 1063:1974 specifies a standardized laboratory method to evaluate the stability of surface‑active agents (surfactants) in hard water. The method addresses surfactants soluble in water at…
Overview - What ISO 10631:2021 Covers ISO 10631:2021 establishes general requirements for metallic butterfly valves used in industrial piping systems with flanged or butt-weld ends. The standard cove…