JJG 28-2019 Active National Metrology and Inspection Regulations JJG

JJG 28-2019 Optical Flats

Publish Date: 2019-09-27 Implement Date: 2020-03-27 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: JJG 28-2019

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 2019-09-27

Implement Date: 2020-03-27

Pages: 30 pages

Scope

This procedure is applicable to the initial inspection, subsequent inspections, and in-use inspections of flat crystals (including plane flat crystals, parallel flat crystals, and long flat crystals).

Development Information

Word Count: 43 Thousand words Pages: 30 pages

Replace the following standards

JJG 28-2000 Optical Flat

Referenced Standards

GB/T 903-2019 Colourless optical glass JB/T 7402-1994 ISO 14999-4:2015(E) JB/T 7401-1994 Flat Plane Crystal

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