BSEN1670-2007Buildinghardware–Corrosionresistance–ReQuirementsandtestmethods
BSEN12569-1999Industrialvalves–Valvesforchemicalandpetrochemicalprocessindustry–ReQuirementsandtests
BSEN10055-1996HotrolledsteeleQualflangeteeswithradiusedrootandtoes.Dimensionsandtolerancesonshapeanddimensions
ANSIB16.41-1983FunctionalQualificationReQuirementsforPowerOperatedActiveValveAssembliesforNuclearPowerPlants