GB 11533-1989
Replaced
GB/T 27995.1-2025
Active
National standards
GB/T 27995.1-2025 Semi-finished spectacle lens blanks—Part 1:Single-vision and multifocal
GB/T 27995.1-2025 Semi-finished spectacle lens blanks—Part 1:Single-vision and multifocal
Basic Information
Standard Code:
GB/T 27995.1-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Other daily necessities
ICS Name:
Ophthalmic equipment
Publish Date:
2025-02-28
Implement Date:
2026-03-01
Pages:
20 pages
Scope
This document specifies the requirements for the optical and geometric performance of semi-finished lens blanks with completed single-focus and multifocal surfaces, and describes the corresponding testing methods.
This document is applicable to single-focus and multifocal semi-finished lens blanks.
Development Information
Same series standard
Replace the following standards
Referenced Standards
GB/T 10050-2009 Optics and optical instruments—Reference wavelengths
GB/T 10050-1988 Optics and optical instruments--Reference wavelengths
GB/T 17341-1998 Optics and optical instruments—Focimeters
GB/T 26397-2011 Ophthalmic optics—Terminology
GB 45184-2024 Optometry products—Safety technical specifications of components
Adopt standards
ISO 10322-1:2016
Related Standards
GB/T 14148-1993
Replaced
GB/T 14148-1993 Glass blank of ophthalmic lenses
GB/T 14214-1993
Replaced
GB/T 14214-1993 Spectacle frames
GB 10810-1996
Replaced
GB 10810-1996 Spectacles lenses
GB 17342-1998
Replaced
GB 17342-1998 Ophthalmic instrument—Trial case lenses
GB 13511-1999
Replaced