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Norm
ÖNORM EN 1557
Issue date: 1997 01 01
Surface active agents - Colorimetric characterization of optically clear coloured liquids (products) as X, Y, Z tristimulus values in transmission
This European Standard specifies a method for the colorimetric characterization of optically clear,
slightly tinted liquids (products) by broad-band measurement of pure ...
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Valid
Publisher:
Austrian Standards International
Format:
Digital | 16 Pages
Language:
German
| English
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ICS
This European 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 rneasuring filtern 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 spectrometfically measured standard of very similar
colour.
ÖNORM EN 1557
1997 01 01
Surface active agents - Colorimetric characterization of optically clear coloured liquids (products)...
Norm
↖
Norm
ISO 4630:1981
Issue date :
1981 10 01
Binders for paints and varnishes — Estimation of colour of clear liquids by the Gardner colour scale
Norm
ISO 6271:1981
Issue date :
1981 02 01
Clear liquids — Estimation of colour by the platinum-cobalt scale
Norm
ISO 7724-1:1984
Issue date :
1984 09 01
Paints and varnishes — Colorimetry — Part 1: Principles