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| International Standard Category: Acoustics in building. Sound insulation |
GB/T 17697-1999 Acoustics - Determination of sound power radiated into a duct by fans - In -duct method
声学 风机辐射入管道的声功率测定 管道法;
| Category No.: | 91.120.20 | Valid Status: | superseded |
| Issued Organization: | CBTS | Issued Date: | 1999-3-8 |
| Implemented Date: | 1999-9-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 17697-2014 Acoustics―Determination of sound power radiated into a duct by fans and other air-moving devices―In-duct method |
Superseded Date: | 2015-2-1 |
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