Performance and testing of teleprotection equipment of power systems - Analogue comparison systemWhat is BS 7494 2 Analogue comparison system of power systems about? BS 7494 is a European standard that discusses the performance and testing of teleprotection equipment for power systems. BS 7494 2 is the second part of the multi part series that applies to narrowband and wideband teleprotection systems used to convey analogue information about the primary quantities such as phase or phase and amplitude. The teleprotection equipment can either be

22 Special requirements for vehicle lifts where it is permitted to stand under the load during lifting and lowering movement

BS 8551:2011 – Provision and management of temporary water supplies and distribution networks (not including provisions for statutory emergencies) - Code of practice is a new standard that provides a framework for best practice in the management of temporary wholesome water supplies and maintenance of the distribution networks and container vessels

• Status value

This British Standard is a revision of BS 5228-4:1986

Output measurement for cooling capacity of air-to-water and air-to-air units

Who is ISO 23874 - Hydrocarbon dewpoint calculation in natural gas industry for

Understanding and managing environmental costs

including those for which sector-specific standards might not exist

6 Method D: Column chromatography on aluminium oxide of precisely defined activity

Replaced Annex C (which was transferred into IEC TR 62240-2) with a cross-reference table to SAE EIA-STD-4899 rev C clauses/subclauses for guidance purposes only

1 Gas-tightness test

BS EN 17116-2 is applicable for use as a reference in the drafting of purchasing orders for batch drying tumblers whose net usable cage volume is 1 000 dm3 (litres) resp