| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 20441.1-2010 | English | 194 |
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Days<=3
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Electroacoustics -- Measurement microphones -- Part 1: Specifications for laboratory standard microphones
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GB/T 20441.1-2010
| Valid |
GB/T 20441.1-2010
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