NF S31-014-1*NF EN ISO 3822-1:1999 Acoustics. Laboratory tests on noise emission from appliances and equipment used in water supply installations. Part 1 : method of measurements.
1982NF S31-014:1982 ACOUSTICS. LABORATORY TESTS ON NOISE FORM TAPWARE AND HYDRAULIC EQUIPMENT USED IN WATER INSTALLATIONS. PART 1 : METHOD OF MEASUREMENT.