BS 6161-12:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
15-02-2001
English
30-04-1987
Foreword
Committees responsible
Methods
0. Introduction
1. Scope
2. Definitions
3. Principle
4. Apparatus and geometric conditions
5. Procedure
6. Expression of results
7. Test report
Appendix A
A. Calculation of specular reflectance and specular
gloss values
Tables
1. Angles and dimensions of source image and receptor
apertures for methods A, B, C and D
2. Angles and dimensions of source image and receptor
apertures for 45 deg reflectometer used in method E
3. Specular reflectance values for polished black glass
4. Specular reflectance values for glass prisms
5. Specular gloss values for polished black glass
Figures
1. Schematic arrangement of apparatus showing apertures
and source image formation for a collimated-beam
type instrument for method A (20 deg), method B
(45 deg), method C (60 deg) and method D (85 deg)
2. Schematic arrangement of apparatus showing apertures
and source image formation for a non-collimated-beam
type instrument for method A (20 deg), method B
(45 deg), method C (60 deg) and method D (85 deg)
3. Schematic arrangement of optical system of narrow-
angle 45 deg specular reflectivity meter for
method E
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