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BS EN ISO 7668:2021

BS EN ISO 7668:2021

$102.76

Anodizing of aluminium and its alloys. Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85°

Published By Publication Date Number of Pages
BSI 2021 22
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This document specifies methods for the measurement of specular reflectance and specular gloss of flat samples of anodized aluminium using geometries of 20° (Method A), 45° (Method B), 60° (Method C) and 85° (Method D) and of specular reflectance by an additional 45° method (Method E) employing a narrow acceptance angle.

The methods described are intended mainly for use with clear anodized surfaces. They can be used with colour-anodized aluminium, but only with similar colours.

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
10 4 Principle
5 Apparatus
6 Geometric conditions
14 7 Optical standards
7.1 Reference standards
7.1.1 Black glass
7.1.2 Glass prism (for Method E only)
15 7.2 Working standards
7.2.1 Description
7.2.2 Zero point check
8 Preparation and calibration of apparatus
16 9 Measurement of specular reflectance and specular gloss
9.1 General
9.2 Measurement of specular reflectance
9.3 Measurement of specular gloss
19 10 Expression of results
10.1 General
10.2 Specular reflectance
10.3 Specular gloss
11 Test report
20 Annex A (normative) Specular reflectance and specular gloss of black glass

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BS EN ISO 7668:2021
$102.76