UNE-EN 1938:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
02-01-2011
Spanish, Castilian
03-29-1999
Foreword
1 Scope
2 Normative references
3 Definitions
4 Requirements
4.1 Design and manufacture
4.2 Materials
4.3 Sit and fit
4.4 Ventilation
4.5 Dimensions
4.6 Optical requirements
4.7 Non optical requirements
4.8 Optional requirements
5 Testing
5.1 Field of vision
5.2 Refractive powers
5.3 Transmittance
5.4 Diffusion of light
5.5 Resistance to ultraviolet radiation
5.6 Impact resistance
5.7 Resistance to surface damage by fine particles
5.8 Resistance to fogging
6 Information supplied by the manufacturer
7 Marking
Annex A (informative) Photochromic sunglare filters for use
in twilight or at night
Annex ZA (informative) Clauses of this European Standard
addressing essential requirements or other provisions of EU
Directives
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