| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HJ 639-2012 | English | 629 |
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Days<=5
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Water quality. Determination of volatile organic compounds. Purge and trap/gas chromatography-mass spectrometer
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HJ 639-2012
| Valid |
HJ 639-2012
|