| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| DZ 53-1987 | English | 399 |
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Days<=3
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(Sedimentary organic matter dispersed vitrinite reflectance measuring method)
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DZ 53-1987
| Obsolete |
DZ 53-1987
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