Acoustics. Noise emitted by machinery and equipment. Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity1 Scope This International Standard specifies an engineering method (grade 2 accuracy) to determine the emission sound pressure level of machines in situ, at the work station or at other specified positions, using sound intensity. It is an alternative to ISO 11201, ISO 11202 and ISO 11204 for in situ measurements. It is applicable to all kinds of test environments provided that the requirements on background noise and field indicators are fulfilled.

BS EN 1747-12 specifies a chemiluminescence method for the determination of the mass concentration of ozone in ambient air

What is BS 7562-4 - Water resources for irrigation schemes about

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which incorporates a displacement compressor of any type driven by an electric motor

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Thermocouple extension and compensating conductors

resistance to damage