16/30320072 DC : DRAFT MAR 2016
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
BS EN ISO 21987 - OPHTHALMIC OPTICS - MOUNTED SPECTACLE LENSES
09-30-2017
04-18-2016
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 Identification
9 Reference to ISO 21987
Annex A (informative) - Recommendations on mounting
Annex B (informative) - Material and surface quality
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
Annex ZA (informative) - Relationship between this European
Standard and the essential requirements of Directive
93/42/EEC [OJ L 169] aimed to be covered
Bibliography
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