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BS EN ISO 18314-2:2023

BS EN ISO 18314-2:2023

$142.49

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 28
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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
2 undefined
4 European foreword
Endorsement notice
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
9 4 Symbols and abbreviated terms
10 5 Saunderson correction
5.1 General
11 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
12 6.2 Method 1
6.3 Method 2
13 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
14 7.3.3 ​Evaluation of the weighted K/S sum
15 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
16 7.3.6 ​Evaluation by equalizing the depth of shade
18 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
19 9 Repeatability and reproducibility
20 Annex A (normative) Tables of coefficients for calculating a(φ) values (standard illuminant D65 and 10° standard observer)
22 Annex B (normative) Tables of coefficients for calculating a(φ) values (illuminant C and 2° standard observer)
24 Bibliography

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BS EN ISO 18314-2:2023
$142.49