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NEN-EN 1557

Surface active agents - Colorimetric characterization of optically clear coloured liquids (products) as X,Y,Z-tristimulus values in transmission

active, Most Current
Organization: NEN
Publication Date: 1 November 1996
Status: active
Page Count: 17
ICS Code (Surface active agents): 71.100.40
scope:

This standard specifies a method for the colorimetric characterization of optically clear, slightly tinted liquids (products) by broad-band measurement of pure transmittance with tristimulus value measuring filters as TX, TY and TZ. Since the tristimulus value measuring filters of simple tristimulus colorimeters meet the Luther condition to a limited extent only it is necessary to deliberately restrict the liquids (products) to slightly tinted ones in order to be able to measure them sufficiently exactly with a single calibration against uncoloured distilled water. If the colour of heavily coloured solutions is measured with simple tristimulus colorimeters, it is necessary to calibrate the instrument with a spectrometricaly measured standard of very similar colour.

Document History

NEN-EN 1557
November 1, 1996
Surface active agents - Colorimetric characterization of optically clear coloured liquids (products) as X,Y,Z-tristimulus values in transmission
This standard specifies a method for the colorimetric characterization of optically clear, slightly tinted liquids (products) by broad-band measurement of pure transmittance with tristimulus value...
September 1, 1994
Surface active agents - Colorimetric characterization of optically clear coloured liquids (products) as X,Y,Z-tristimulus values in transmission
This standard specifies a method for the colorimetric characterization of optically clear, slightly tinted liquids (products) by broad-band measurement of pure transmittance with tristimulus value...
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