BS EN ISO 3822-4:1997- Acoustics. Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 4. Mounting and operating conditions for special appliances
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This part of EN ISO 3822 specifies the mounting and operating conditions to be used for a number of appliances which cannot be regarded as draw-off or in-line valves, when measuring the noise emission resulting from water flow.
BS EN ISO 3822-4:1997- Acoustics. Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 4. Mounting and operating conditions for special appliances