DIN EN ISO 6271
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
active, Most Current
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| Organization: | DIN |
| Publication Date: | 1 May 2016 |
| Status: | active |
| Page Count: | 14 |
| ICS Code (Colours and measurement of light): | 17.180.20 |
| ICS Code (Binders): | 87.060.20 |
scope:
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.
NOTE The term "Pt-Co colour" used here is preferred over the terms "Hazen colour" and "APHA colour".
Document History
DIN EN ISO 6271
May 1, 2016
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
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...