Building valves. Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings. Tests and requirements PAS 15 calling on best practice used

calling on best practice used in other CCTV and intruder-alarm related applications

the distance to the surface from the point where the hardness is equal to the hardness limit

configuration status accounting and configuration audit

interdependencies between trades

Why should you use BS EN 61197 - Insulation liquids

Building valves. Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings. Tests and requirements PAS 15 calling on best practice used1 Scope This European standard applies primarily to copper alloy ball valves, dimensions DN 8 to DN 100, for potable water supply in buildings up to PN 10 and a distribution temperature of 65 C. Occasional excursions up to 90 C are permitted for a period of 1 h maximum. This standard applies also to ball valves in combination with other components in the same body. This standard specifies: the requirements of the materials and the design of ball