GB/T 16920-1997
Replaced
GB/T 7962.7-2025
Active
National standards
GB/T 7962.7-2025 Test methods of colourless optical glass—Part 7:Extent of striae
GB/T 7962.7-2025 Test methods of colourless optical glass—Part 7:Extent of striae
Basic Information
Standard Code:
GB/T 7962.7-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Optoelectronic devices
ICS Name:
\nGlass Composite
Publish Date:
2025-06-30
Implement Date:
2026-01-01
Pages:
16 pages
Scope
This document describes the testing principles, instruments, samples, test conditions, testing steps, result presentation, and test reports for the striation degree of colorless optical glass.
This document is applicable to the testing of the striation degree of colorless optical glass, and the striation degree of other materials that are transparent under the testing wavelength can be referenced for testing.
Development Information
Same series standard
Replace the following standards
Referenced Standards
Related Standards
GB/T 6580-1997
Replaced
GB/T 6580-1997 Glass—Resistance to attack by a boiling aqueous solution of mixed alkali—Method of test and classification
GB/T 6582-1997
Replaced
GB/T 6582-1997 Glass—Hydrolytic resistance of glass grains at 98℃—Method of test and classification
GB/T 17129-1997
abolished_transferred
GB/T 17129-1997 Colourless optical glass test methods of chemical stability—Powder
GB 17762-1999
Replaced
GB 17762-1999 Safe and hygienic requirements of thermotolerant glass ware
GB/T 17763-1999
Active