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International Standard Category: Acoustics and acoustic measurements |
Category No.: | 17.14 | Valid Status: | superseded |
Issued Organization: | AQSIQ | Issued Date: | 2005-4-28 |
Implemented Date: | 2005-10-28 | Abolished Date: | |
Superseded Standard.: | JJG 778-2019 Noise Level Statistical Analyzers |
Superseded Date: | 2020-3-31 |
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