| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JJG 440-1986 | English | 639 |
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Days<=5
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Verification Regulation of 50Hz Single-phase Phasometer
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JJG 440-1986
| Obsolete |
JJG 440-1986
|