| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| MT 277-1994 | English | 199 |
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Days<=2
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Harmful gas existing in mine air Detection method of hydrogen sulfide (detector tube method)
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MT 277-1994
| Obsolete |
MT 277-1994
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