Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel; German version EN 12516-4:2014— 24 стр.
Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel; German version EN 12516-4:2014+A1:2018— 24 стр.
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 4: Valves (ISO 16486-4:2016)— 22 стр.