| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 31709-2015 | English | 129 |
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Days<=3
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Data processing of background atmospheric carbon dioxide and methane concentration measured by in situ gas chromatographic (GC) system
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GB/T 31709-2015
| Valid |
GB/T 31709-2015
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