Acoustics - measurement of sound insulation in buildings and of building elements - requirements for laboratory test facilities with suppressed flanking transmission 声学.建筑物和建筑构件的隔声测量.第1部分:能抑制侧向传声的实验室试验装置的要求
2.
Acoustics - measurement of sound insulation in buildings and of building elements - part 1 : requirements for laboratory test facilities with suppressed flanking transmission - amendment 1 : specific requirements on the frame of the test opening for lightweight twin leaf partitions 声学.建筑物和建筑构件的隔声测量.第1部分:能抑制侧向传声的实验室试验装置的要求.修改件1 :轻型双叶隔板用开度测试框架的特殊要求
