Industrial valves. Metallic check valves1 Scope This document specifies the general requirements for metallic check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 7362) with end connections flanged or wafer, butt welding, socket welding, or threaded. This document applies to metallic check valves used for all industrial applications. Additional requirements given in the relevant application standards may apply to check valves used for more

Why should you use BS EN 2240-093 - Incandescent lamps

methods of specimen measurement etc

testing procedures and performance criteria for power supplies (PS) for use in intrusion detection and hold-up-alarm systems in buildings

appliances incorporating flame supervision devices and having an automatic ignition device for which the duration of the ignition attempt is limited by design or appliances equipped with a burner that is periodically ignited and extinguished under the control of an automatic on/off device

With analogue indication

BS EN 10242 covers the technicalities such as related terminology

EN 50483‑2

but controlled by the appliance when the fan is defined in the technical documentation (e

Two test methods are specified

Contents of BS EN 15316-4-7:

Note 1: BS EN 61810‑2 does not cover procedures for electromechanical elementary relays where enhanced requirements for the verification of reliability apply

or an equivalent National specification) or as part of a Network Entry Agreement for injection of biomethane into gas networks