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ILNAS-EN ISO 6271:2015
Edition
12/2015
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
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Abstract
ISO 6271:2015 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".
Status
| Standard - Active |
Origin
| Technical Committee : |
| CEN/TC 139 : Paints and varnishes |
Implementation
| start of the vote on the project | 13/03/2014 | date of ratification (dor) | 01/11/2015 | |||
| end of the vote on the project | 13/08/2014 | date of anouncement (doa) | 31/03/2016 | |||
| start of the vote on the final project | 30/07/2015 | date of publication (dop) | 30/06/2016 | |||
| end of the vote on the final project | 30/09/2015 | date of withdrawal (dow) | 30/06/2016 |
|
Publication Official Journal
of the Grand-Duchy of Luxembourg |
03/05/2016 |
| Reference | Mémorial A N° 77 |
Relations
| Relations to older standards |
| ILNAS-EN ISO 6271-1:2004 |
| ILNAS-EN ISO 6271-2:2004 |
| Relations to international standards |
| ISO 6271 |
| ISO 6271 |
| ISO 6271 |
| ISO 6271:2015 |
International Classification for Standards (ICS codes) :
| 87.060.20 : Binders |
