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AS/NZS 1580.601.4:1994

Current
Current

The latest, up-to-date edition.

Paints and related materials - Methods of test Colour - Calculation of colour differences (Reconfirmed 2013)
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Language(s)

English

Published date

03-14-1994

Preview

1 - AS/NZS 1580.601.4:1994 PAINTS AND RELATED MATERIALS-METHODS OF TEST - COLOUR-CALCULATION OF COLOUR DIFFERENCES
1 - PREFACE
1 - FOREWORD
2 - METHOD
2 - 1 SCOPE
2 - 2 REFERENCED DOCUMENTS
2 - 3 DEFINITIONS
2 - 4 PRINCIPLE
2 - 5 CALCULATIONS
2 - 5.1 General
3 - 5.2 Total colour difference using the CIELAB colour difference formula
3 - 5.3 Lightness difference
3 - 5.4 Chroma difference
3 - 5.5 Hue difference
4 - 6 COLOUR DIFFERENCE
4 - 6.1 General
4 - 6.2 Colour difference of near white test specimens
4 - 7 TEST REPORT

Provides a method for the quantitative evaluation of small colour difference between paint films.

This Standard sets out the method for the quantitative evaluation of small colour differences between paint films.NOTES:1 There are numerous formulae for calculating a colour difference from the colour coordinates of two specimens. For various reasons the results given by such formulae, including the one defined here, do not in all cases agree satisfactorily with visual perception, nor are they likely to agree with each other. In 1976, the Commission Internationale de l'Eclairage (CIE) recommended two formulae for general use. One of these, the CIE (L*a*b*) colour difference formula, has proved to be of practical value for the colorimetric evaluation of paint films and a detailed description may be obtained from CIE Publication No. 15.2.2 This method of evaluating colour difference should not be confused with the Hunter Lab system.

Committee
CH-003
DocumentType
Standard
ISBN
0 7262 8183 2
Pages
4
ProductNote
PublisherName
Standards Australia
Status
Current
Supersedes

First published as part of AS K41.601.2-1970.AS K41.601.3 first published 1971.AS K41.601.2-1970 redesignated AS 1580.601.2-1975.AS K41.601.3-1971 redesignated AS 1580.601.3-1975.AS 1580.601.2-1975 and AS 1580.601.3-1975 jointly revised and redesignated in part as Joint Standard AS/NZS 1580.601.4:1994.Reconfirmed 2013. First published as part of AS K41.601.2-1970. AS K41.601.3 first published 1971. AS K41.601.2-1970 redesignated AS 1580.601.2-1975. AS K41.601.3-1971 redesignated AS 1580.601.3-1975. AS 1580.601.2-1975 and AS 1580.601.3-1975. Jointly revised and redesignated in part as Joint Standard AS/NZS 1580.601.4:1994.

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