ObsoleteGo to latest versionJJG 2007-2015

JJG 2007-1987Verification System of Time and Frequency Measuring Instruments (English PDF)

时间频率计量器具检定系统

JJG 2007 | Evolution and historical versions

Std ID	Title	Status
JJG 2007-2015	Verification Scheme of Time and Frequency Measuring Instruments	Valid
JJG 2007-2007	Verification Scheme of Time and Frequency Measuring Instruments	Obsolete
JJG 2007-1987	Verification System of Time and Frequency Measuring Instruments	Obsolete

JJG 2007-1987 is obsolete. It has been replaced by JJG 2007-2007. This page sells the obsolete edition, for projects and contracts that still cite it.

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Level / Type

National · Mandatory

Scope

JJG 2007-1987 is the English-translated version of 时间频率计量器具检定系统.

JJG 2007-1987 is the Chinese metrological standard "Verification System of Time and Frequency Measuring Instruments". It is obsolete: it has been replaced by JJG 2007-2007.

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Document preview — JJG 2007-1987

Document data

1 Document data

Sector: Metrological Verification (metrological standard).

Status: obsolete, replaced by JJG 2007-2007.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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