CSA Z94.5 : 0

Acknowledgement
Technical Committee on Eye Protection
Subcommittee on Nonprescription Sunglasses
Preface
Foreword
1 Scope
2 Definitions and Reference Publications
   2.1 Definitions
   2.2 Reference Publications
3 Transmittance Requirements
   3.1 Luminous Transmittance
   3.2 Mean Transmittance
   3.3 Transmittance Properties Related to Traffic
       Signal Recognition
4 Qualification of Lens Types
   4.1 General
   4.2 Polarizing Lens
   4.3 Gradient Density Lens
   4.4 Uniform Density Lens
   4.5 Photosensitive Lens
5 Impact Resistance
   5.1 All Lenses
   5.2 Robust Sunglasses
6 Cosmetic Quality
7 Refractive Properties
   7.1 Refractive Power
   7.2 Astigmatic Power
   7.3 Prismatic Power
8 Lens Warpage
9 Marking
10 Tests
   10.1 Luminous Transmittance Test
   10.2 Mean Transmittance Test
   10.3 Chromaticity Coordinates Test
   10.4 Traffic Signal Transmittance Test
   10.5 Photosensitive Lens Qualification Test
   10.6 Impact Resistance Tests
   10.7 Cosmetic Quality Test
   10.8 Refractive Properties Test
   10.9 Lens Warpage Test
Tables
Figures
Annex A - Determination of Traffic Signal Transmittance

Applicable to all nonprescription sunglasses, with lenses of substantially plano power, that are normally used where safety eye wear is not specifically recommended. This standard gives requirements for transmittance of ultraviolet radiation and visible light, qualification of lens types, impact resistance, cosmetic quality, refractive properties, lens warpage, and labelling.