| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JJF 1228-1990 | English | 279 |
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Days<=3
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Operating Technical Norm for Gas Flow Primary Standard in the Range from 30 to 120 m3/h
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JJF 1228-1990
| Obsolete |
JJF 1228-1990
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