Table of Contents

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Verification methods
7 Marking for position-specific single-vision lenses and
   power-variation lenses
8 Recommendations on mounting
9 Identification
10 Reference to this document
Annex A (informative) - Material and surface quality
Annex B (informative) - Recommendations on mounting
Annex C (informative) - Alternative method for measuring prism
        imbalance (relative prism error) for mounted single-vision
        lenses (excluding position-specific single-vision lenses)
        and multifocal lenses
Bibliography

Abstract

Gives requirements and test methods for mounted spectacle lenses relative to the prescription order.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 172
Supersedes	ISO 21987 : 2009 ISO/DIS 21987 : 60.00 (2017)