| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GA/T 1939-2021 | English | 299 |
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Days<=3
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Forensic sciences - Examination methods for electric marks - Scanning electron microscopy/energy dispersive X-ray spectrometry
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GA/T 1939-2021
| Valid |
GA/T 1939-2021
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