UNE-EN ISO 6271:2016
Current
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
Hardcopy , PDF
Spanish, Castilian, English
09-14-2016
ISO 6271 specifies a spectrophotometric method for estimating the colour of clear liquids in terms of 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 intensively than the Pt-Co stock solution the ISO 4630 method is recommended.
The spectrophotometric method provides a more precise way of measuring Pt-Co colour than a visual sample comparison by human eyes.
NOTEThe term Pt-Co colour used here is preferred over the terms Hazen colour and APHA colour .
| Committee |
CTN 48
|
| DevelopmentNote |
Supersedes UNE EN ISO 6271-1 & UNE EN ISO 6271-2. (09/2016)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| BS 349:1973 | Identical |
| ISO 6271:2015 | Identical |
| EN ISO 6271:2015 | Identical |
| DIN EN ISO 6271:2016-05 | Equivalent |
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