SS-EN-ISO-6271 Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)

SS-EN-ISO-6271 - 2016 EDITION - CURRENT


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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”.

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Designation Name

SS-EN ISO 6271:2016

Revision Level

2016 EDITION

Status

Current

Publication Date

Jan. 12, 2016

Language(s)

English

Page Count

20

International Equivalent

EN ISO 6271:2015(IDT); ISO 6271:2015(IDT)