NS EN ISO 8980-4 : 2ED 2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
      4.1 General requirements
      4.2 Luminous and mean reflectances
      4.3 Usable diameter of coated area
5 Testing
      5.1 General
      5.2 Method of determination of reflectance
      5.3 Determination of spectral reflectance values
      5.4 Determination of luminous reflectance
      5.5 Determination of mean reflectance
6 Information to be made available on request
7 Reference to this part of ISO 8980
Annex A (informative) Significance of pv and pm in the
                      description of anti-reflective coated
                      lenses

Specifies optical and non optical requirements, including durability, and test methods for anti-reflective coatings on spectacle lenses.