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BS EN ISO 18314-2:2023 – TC

BS EN ISO 18314-2:2023 – TC

$186.33

Tracked Changes. Analytical colorimetry – Saunderson correction, solutions of the Kubelka-Munk equation, tinting strength, depth of shade, hiding power

Published By Publication Date Number of Pages
BSI 2023 62
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This document specifies the Saunderson correction for different measurement geometries and the solutions of the Kubelka-Munk equation for hiding and transparent layers. It also specifies methods for the calculations of the tinting strength including the residual colour difference based on different criteria such as the depth of shade. Finally, methods for determining the hiding power are provided. The procedures for preparing the samples for these measurements are not part of this document. They are agreed between the contracting parties or are described in other national or international standards.

PDF Catalog

PDF Pages PDF Title
1 30470187
35 A-30446082
36 undefined
38 European foreword
Endorsement notice
40 Foreword
41 1 Scope
2 Normative references
3 Terms and definitions
43 4 Symbols and abbreviated terms
44 5 Saunderson correction
5.1 General
45 5.2 Incidence diffuse, observation 0° (d:0°)
5.3 Incidence 45°, observation 0° (45°:0°)
6 Solution of the Kubelka-Munk equations
6.1 General
46 6.2 Method 1
6.3 Method 2
47 7 Determination of relative tinting strength and residual colour difference of coloured pigments
7.1 General
7.2 Principle
7.3 Procedure
7.3.1 General
7.3.2 ​Evaluation of absorption at the absorption maximum
48 7.3.3 ​Evaluation of the weighted K/S sum
49 7.3.4 ​Evaluation by equalizing the tristimulus value, Y
7.3.5 ​Evaluation by equalizing the smallest of the tristimulus values X, Y, and Z
50 7.3.6 ​Evaluation by equalizing the depth of shade
52 8 Determination of hiding power of pigmented media
8.1 General
8.2 Example for white or light-coloured paints with a contrast ratio of 0,98 as hiding power criterion
53 9 Repeatability and reproducibility
54 Annex A (normative) Tables of coefficients for calculating a(φ) values (standard illuminant D65 and 10° standard observer)
56 Annex B (normative) Tables of coefficients for calculating a(φ) values (illuminant C and 2° standard observer)
58 Bibliography

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BS EN ISO 18314-2:2023 - TC
$186.33