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it replaces BS 5400-9
BS EN 50157-2-2 describes the physical medium through which basic AV link commands may be communicated from one device to another device
Electric cables keep the electricity running and ensure the safety and stability of electricity
A Guidance on the use of this International Standard
or if the materials are not appropriate for the roadside environment
Building valves. Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings. Tests and requirements Ingestion-build-47553 it replaces BS 5400-91 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
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