Clear liquids - Estimation of colour by the platinum-cobalt colour scale
NORM herausgegeben am 1.7.2016
Bezeichnung normen: ČSN EN ISO 6271
Zeichen: 673026
Katalog-Nummer: 99856
Ausgabedatum normen: 1.7.2016
Zahl der Seiten: 20
Gewicht ca.: 60 g (0.13 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
This International Standard specifies a spectrophotometric method for estimating the colour of clear liquids in terms of platinum-cobalt units (Pt-Co units). It is applicable to clear liquids having a colour characteristic similar to those of the platinum-cobalt colour scale specified in Annex A. For products with colours more intense than the Pt-Co stock solution the method specified in ISO 4630 applies.
The spectrophotometric method provides a more precise way of measuring Pt-Co colour than a visual sample comparison by human eyes