EN 13178:2000

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Design and manufacture
       4.1.1 General requirements
       4.1.2 Materials
       4.1.3 Sit and fit
       4.1.4 Ventilation
  4.2 Optical requirements
       4.2.1 Field of vision
       4.2.2 Ocular requirements
  4.3 Mechanical requirements
       4.3.1 Impact resistance
       4.3.2 Resistance to corrosion
       4.3.3 Resistance to fogging
  4.4 Optional requirements
       4.4.1 Enhanced infrared absorption
5 Testing
  5.1 Visual inspection
  5.2 Field of vision
  5.3 Refractive powers
  5.4 Transmittance
       5.4.1 Luminous transmittance
       5.4.2 Ultraviolet transmittance
       5.4.3 Infrared transmittance
  5.5 Variations in luminous transmittance
  5.6 Diffusion of light
  5.7 Quality of material and surface
  5.8 Resistance to ultraviolet radiation
  5.9 Impact resistance
  5.10 Resistance to corrosion
  5.11 Resistance to fogging
6 Information
  6.1 Information supplied by the manufacturer
  6.2 Information which shall be available from the
       manufacturer or supplier
7 Marking
  7.1 Oculars
  7.2 Frames
Annex A (informative) Uncertainty of measurement and results
         interpretation
Annex ZA (informative) Clauses of this European Standard
         addressing essential requirements or other provisions
         of EU directives
Bibliography

This EN specifies requirements and test methods for eye protectors for snowmobile users. They are intended to protect the user from risks of mechanical impacts, corneal freezing, and from factors which may adversely affect the wearer's vision, such as UV radiation, sunglare and fogging.