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What is this BS 8521-2 about
enabling late-season sulfur uptake by plants in agricultural applications
BS 6880-3 provides guidance on the necessary preliminary checks and static testing of mechanical and electrical systems to be carried out following a systematic and documented procedure
BS EN 14624 gives the correlation between test gas concentration and leakage rate to measure the assumed increase of refrigerant concentration of 420 ppm with good repeatability
Railway applications. Noise emission. Measurement of noise inside driver's cabs Ingestion-build-242630 What is this BS 8521-21 Scope This European Standard specifies a type test method to measure noise levels inside the driver's cabs of railway vehicles for assessing compliance with the relevant European legislation. NOTE The relevant European legislation includes Directive 2003 10 EC of 6 February 2003 and the Commission Decisions of 23 December 2005 (Technical specification for interoperability relating to the subsystem rolling stock noise of the trans European