| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HJ 1219-2021 | English | 239 |
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Ambient air and waste gas - Determination of pyridine - Gas chromatography method
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HJ 1219-2021
| Valid |
HJ 1219-2021
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