I.S. EN ISO 18526-2:2020
Current
The latest, up-to-date edition.
Eye and face protection - Test methods - Part 2 : Physical optical properties (ISO 18526-2:2020)
Hardcopy , PDF
English
29-03-2020
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Concept and process overview
5 General test requirements
6 Test methods for measuring transmittance — General
7 Luminous transmittance
8 Ultraviolet transmittance
9 Blue-light transmittance
10 IR transmittance
11 Relative visual attenuation coefficient for traffic signal light detection, Qsignal
12 Spectral reflectance
13 Luminous reflectance
14 Scattered light
15 Polarization
16 Photochromic lenses
17 Automatic welding filters
Annex A (normative) Application of uncertainty of measurement
Annex B (informative) Sources of uncertainty in spectrophotometry and their estimation and control
Annex C (informative) Definitions in summation form
Annex D (normative) Spectral functions for the calculation of transmittance and reflectance values
Annex E (informative) Generic description of automatic welding filters and guidance on illumination during testing
Bibliography
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