A32 标准查询与下载
共找到 3 条与 相关的标准，共 1 页
Laser holographic positioning paper for packaging materials
- ICS
- 55.040
- CCS
- A32
- 发布
- 2021-12-22
- 实施
- 2022-04-01
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Acoustics-Determination of sound power levels of noise sources using sound intensity-Part 2:Measurement by scanning
- ICS
- CCS
- A32
- 发布
- 2004-12-17
- 实施
- 2004-12-17
Specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined.
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning
- ICS
- 17.140.01
- CCS
- A32
- 发布
- 1996-08
- 实施
