| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YY/T 91142-1999 | English | 199 |
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Days<=2
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(Pulse-echo ultrasound diagnostic frequency measurement method)
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YY/T 91142-1999
| Obsolete |
YY/T 91142-1999
|