DIN EN ISO 5135:2020
聲學(xué). 在混響試驗(yàn)室中測(cè)定空調(diào)終端設(shè)備、空調(diào)終端單元、阻尼器和調(diào)節(jié)閥門(mén)的噪聲功率級(jí)
Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020); German version EN ISO 5135:2020