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eLibrary > ISO 18526-2:2020 Eye and face protection - Test methods - Part 2: Physical optical properties >

ISO 18526-2:2020 Eye and face protection - Test methods - Part 2: Physical optical properties, 2020

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Preparatory information
5 General test requirements
6 Test methods for measuring transmittance — General
6.1 Uncertainty of measurement
6.2 Reporting compliance
6.3 Applicability
6.4 Position and direction of measurement
6.5 Wavelength intervals
6.6 Test report
7 Luminous transmittance
7.1 Calculations of luminous transmittance from spectral values
7.2 Test report
7.3 Broadband method of measurement of luminous transmittance
7.3.1 Apparatus
7.3.2 Calibration
7.3.3 Procedure
7.3.4 Test reports for luminous transmittance values
7.4 Measurement of uniformity of luminous transmittance
7.4.1 Unmounted filter covering one eye
7.4.2 Filter covering both eyes
7.5 Transmittance matching at right and left reference points
7.5.1 Test method
7.5.2 Calculations
7.5.3 Test report
8 Ultraviolet transmittance
8.1 General
8.2 Spectral transmittance and mean spectral transmittance
8.3 Solar UV transmittance
8.4 Solar UV-A transmittance
8.5 Solar UV-B transmittance
8.6 Mean UV-A transmittance
8.7 Mean UV-B transmittance
8.8 Mean 380 nm to 400 nm transmittance
8.9 Test report
9 Blue-light transmittance
9.1 Solar blue-light transmittance
9.1.1 Calculation of solar blue-light transmittance from spectral values
9.1.2 Broadband method of measurement of solar blue-light transmittance
9.2 Blue-light transmittance from artificial sources
9.2.1 Calculation of blue-light transmittance from artificial sources from spectral values
9.2.2 Broadband method of measurement of blue-light transmittance from artificial sources
9.2.3 Test report
10 IR transmittance
10.1 Near IR transmittance
10.1.1 Calculation
10.2 IR-A transmittance
10.2.1 Calculation
10.3 IR-B transmittance
10.3.1 Calculation
10.4 Solar IR transmittance
10.4.1 Calculation
10.5 Test report
11 Relative visual attenuation coefficient for traffic signal light detection, Qsignal
11.1 Calculation
11.2 Test report
12 Spectral reflectance
12.1 Uncertainty of measurement
12.2 Position and direction of measurement
12.2.1 Specular spectral reflectance
12.2.2 Total spectral reflectance (specular included)
12.2.3 Total spectral reflectance (specular excluded)
12.2.4 0°/45° and 45°/0° geometry
12.3 Wavelength intervals
12.4 Test report
13 Luminous reflectance
13.1 Calculations
13.2 Test report
13.3 Luminous reflectance of mesh
14 Scattered light
14.1 Wide angle scatter
14.1.1 Principle
14.1.2 Apparatus
14.1.3 Test sample
14.1.4 Test procedure
14.1.5 Calculation
14.1.6 Test report
14.2 Narrow angle scatter
14.2.1 Principle
14.2.2 Test methods
14.2.3 Test report
15 Polarization
15.1 Plane of transmission
15.1.1 Apparatus
15.1.2 Test procedure
15.1.3 Test report
15.2 Polarizing efficiency
15.2.1 Principle
15.2.2 Test procedure for the spectrophotometric method
15.2.3 Test report
15.2.4 Test procedure for the broadband method
15.2.5 Test report
16 Photochromic lenses
16.1 Light source(s) to approximate the spectral distribution of solar radiation for air mass 2 for testing
16.1.1 Radiation source using one lamp
16.1.2 Radiation source using two lamps
16.2 Conditioning for luminous transmittance in the faded state
16.3 Measurement
16.3.1 Principle
16.3.2 Faded state
16.3.3 Darkened states
17 Automatic welding filters
17.1 General
17.2 Luminous transmittance in the light state
17.2.1 Measurement
17.2.2 Test report
17.3 Luminous transmittance in the dark state
17.3.1 Measurement
17.3.2 Test report
17.4 Shade number of welding filters with automatic shade number setting
17.4.1 Principle
17.4.2 Apparatus
17.4.3 Test procedure
17.4.4 Test report
17.5 Luminous transmittance variation over time
17.5.1 Principle
17.5.2 Apparatus
17.5.3 Test procedure
17.5.4 Test report
17.6 Blue-light transmittance for artificial sources
17.6.1 Measurement
17.6.2 Test report
17.7 Uniformity of luminous transmittance for flat filters
17.7.1 Filter covering both eyes
17.8 Angular dependence of luminous transmittance for flat filters
17.8.1 Principle
17.8.2 Apparatus
17.8.3 Test procedure
17.8.4 Test report
17.9 Angular dependence and uniformity of luminous transmittance for curved filters
17.9.1 Principle
17.9.2 Apparatus
17.9.3 Procedure
17.9.4 Test report
17.10 Transmittance matching at right and left reference points
17.10.1 Procedure
17.10.2 Test report
17.11 Switching time
17.11.1 Principle
17.11.2 Apparatus
17.11.3 Procedure
17.11.4 Uncertainty of measurement
17.11.5 Test report
17.12 Holding time
17.12.1 Principle
17.12.2 Apparatus
17.12.3 Procedure
17.12.4 Uncertainty of measurement
17.12.5 Test report
17.13 Manual control of dark state
17.13.1 Procedure
17.13.2 Test report
17.14 Optical sensitivity of welding detection
17.14.1 Principle
17.14.2 Apparatus
17.14.3 Measuring equipment
17.14.4 Trigger light source (L)
17.14.5 Calibration procedure for the trigger light source (L)
17.14.6 Higher intensity light source (I)
17.14.7 Lower intensity light source (F)
17.14.8 Test procedure
17.14.9 Test report
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 [Go to Page]

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ISO 18526-2:2020 Eye and face protection - Test methods - Part 2: Physical optical properties, 2020

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