| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 40661-2021 | English | 409 |
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Days<=4
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Calibration specification of measurement instrument for power frequency magnetic field
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GB/T 40661-2021
| Valid |
GB/T 40661-2021
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