| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JJF 1180-2007 | English | 549 |
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Days<=4
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Glossary and Definition of Time and Frequency Metrology
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JJF 1180-2007
| Valid |
JJF 1180-2007
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