| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 12060.21-2025 | English | 1419 |
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Days<=3
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Sound system equipment - Part 21: Acoustical (output-based)measurements
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GB/T 12060.21-2025
| Valid |
GB/T 12060.21-2025
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