Obsolete

JJG 28-2000Optical Flat (English PDF)

平晶检定规程

JJG 28 | Evolution and historical versions

Std ID	Title	Status
JJG 28-2019	Verification Regulation of Optical Flats	Obsolete
JJG 28-2000	Optical Flat	Obsolete

JJG 28-2000 is obsolete. It has been replaced by JJG 28-2019. This page sells the obsolete edition, for projects and contracts that still cite it.

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Issued by

State Quality and Technology Supervision Bureau

Level / Type

National · Mandatory

Issue date

July 9, 2000

Implementation date

September 15, 2000

Scope

JJG 28-2000 is the English-translated version of 平晶检定规程.

JJG 28-2000 is the Chinese metrological standard "Optical Flat". It was issued on July 9, 2000 by the State Quality and Technology Supervision Bureau, and took effect on September 15, 2000. It is obsolete: it has been replaced by JJG 28-2019.

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Document preview — JJG 28-2000

National Standard of the People's Republic of China

Issued by: State Quality and Technology Supervision Bureau

Document data

1 Document data

Sector: Metrological Verification (metrological standard).

Issuing body: State Quality and Technology Supervision Bureau.

Date of issue: 2000-07-09.

Date of implementation: 2000-09-15.

Status: obsolete, replaced by JJG 28-2019.

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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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