Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 1: Method of measurement (ISO 3822-1:1999 + Amd 1:2008); German version EN ISO 3822-1:1999 + A1:2008— 28 стр.
Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 4: Mounting and operating conditions for special appliances
Steel and cast iron - Determination of copper content - Flame atomic absorption spectrometric method (ISO/DIS 4943:2021); German and English version prEN ISO 4943:2021
