Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
JJG 991-2004 | English | 959 |
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Days<=5
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Verification Regulation of Aural Impedance Audiometers
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JJG 991-2004
| Obsolete |
JJG 991-2004
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