| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YY/T 0749-2009 | English | 454 |
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Days<=4
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Ultrasonics. Hand-held probe Doppler foetal heartbeat detectors. Performance requirements and methods of measurement and reporting
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YY/T 0749-2009
| Valid |
YY/T 0749-2009
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