Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59
inform@normdocs.ru

DIN EN ISO 3741/A1:2009-05

Отменен
Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms (ISO 3741:1999, including Cor 1:2001); English version FprEN ISO 3741:2009, Amendment 1