Industrial valves. Steel ball valves1 Scope This European Standard specifies requirements for industrial steel ball valves having flanged, threaded, socket welding or butt welding ends. The DN range is: DN 4; DN 6; DN 8; DN 10; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 550; DN 600; DN 650; DN 700; DN 750; DN 800; DN 850; DN 900. The PN and Class ranges are: PN 6; PN 10; PN 16; PN 25; PN 40;

Subcontracting

This European Standard is also applicable for exhaust gases from other sources with a flue gas composition

BS EN 61158-5-21 defines the application service characteristics that fieldbus applications and/or system management may exploit

storage and sharing

under defined in vitro conditions

These recommendations apply to the long-term

This British Standard is suitable for regulatory purposes

“the anchor system was installed in accordance with BS 7883:2005 and the inspection has been carried out in accordance with BS 7883:2019

ISO 17438-4 defines:

3 of the enclosed CCSDS publication

This part of ISO 18185 is used in conjunction with the other parts of ISO 18185

whether this is the free hydroxylamine method described in ISO 1271 or another method