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BS EN ISO 18526-1:2020

BS EN ISO 18526-1:2020

$142.49

Eye and face protection. Test methods – Geometrical optical properties

Published By Publication Date Number of Pages
BSI 2020 24
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This document specifies the reference test methods for determining the spherical, cylindrical, and prismatic refractive power properties of unmounted and mounted plano lenses (non-corrective lenses) for eye and face protectors.

This document does not apply to any eye and face protection product requirement standards for which other test methods are specified.

Other test methods can be used provided they have been shown to be equivalent and include uncertainties of measurement no greater than those required by the reference method.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Preparatory information
10 5 General test requirements
6 Geometrical optical test methods
6.1 Test method for refractive power and prismatic power for plano lenses
6.1.1 Principle
6.1.2 Apparatus
11 6.1.3 Calibration of the apparatus
6.1.4 Procedure
13 6.2 Test method for the prism imbalance of complete eye protectors or lenses covering both eyes
6.2.1 Principle
6.2.2 Apparatus
14 6.2.3 Procedure
15 6.2.4 Test report
6.3 Spatial deviations
6.3.1 Principle
6.3.2 Apparatus
16 6.3.3 Procedure
17 6.3.4 Test report
7 Uncertainty of measurement
18 Annex A (normative) Application of uncertainty of measurement
21 Annex B (informative) Method of variable distance for the calibration of telescope (see 6.1.3)
23 Bibliography

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BS EN ISO 18526-1:2020
$142.49