BS EN ISO 7668:2021 – TC
$134.27
Tracked Changes. 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 | 48 |
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 |
|---|---|
| 28 | National foreword |
| 30 | European foreword |
| 32 | Foreword |
| 33 | Introduction |
| 35 | 1 Scope 2 Normative references 3 Terms and definitions |
| 36 | 4 Principle 5 Apparatus 6 Geometric conditions |
| 40 | 7 Optical standards 7.1 Reference standards 7.1.1 Black glass 7.1.2 Glass prism (for Method E only) |
| 41 | 7.2 Working standards 7.2.1 Description 7.2.2 Zero point check 8 Preparation and calibration of apparatus |
| 42 | 9 Measurement of specular reflectance and specular gloss 9.1 General 9.2 Measurement of specular reflectance 9.3 Measurement of specular gloss |
| 45 | 10 Expression of results 10.1 General 10.2 Specular reflectance 10.3 Specular gloss 11 Test report |
| 46 | Annex A (normative) Specular reflectance and specular gloss of black glass |
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