| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 4959-2011 | English | 689 |
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Days<=5
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Methods of measurement for the characteristics of sound reinforcement in auditoria
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GB/T 4959-2011
| Valid |
GB/T 4959-2011
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