NF EN ISO 6271-1

NF EN ISO 6271-1

March 2005
Standard Cancelled

Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 1 : visual method

ISO 6271-1:2004 specifies a method for estimating the colour, in Pt-Co units, of clear liquids. It is applicable to clear liquids having colour characteristics similar to those of the reference platinum-cobalt scale.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2005

Number of pages

13 p.

Reference

NF EN ISO 6271-1

ICS Codes

71.040.50   Physicochemical methods of analysis
87.060.20   Binders

Classification index

T20-031-1

Print number

1 - 17/03/2005

International kinship

ISO 6271-1:2004

European kinship

EN ISO 6271-1:2004
Sumary
Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 1 : visual method

ISO 6271-1:2004 specifies a method for estimating the colour, in Pt-Co units, of clear liquids.

It is applicable to clear liquids having colour characteristics similar to those of the reference platinum-cobalt scale.

Standard replaced by (1)
NF EN ISO 6271
March 2016
Standard Current
Clear liquids - Estimation of colour by the platinum-colbalt colour scale

<p>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.</p> <p>The spectrophotometric method provides a more precise way of measuring Pt-Co colour than a visual sample comparison by human eyes.</p> <p>NOTE The term "Pt-Co colour" used here is preferred over the terms "Hazen colour" and "APHA colour".</p>

Table of contents
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  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Principe
    1
  • 5 Réactifs
    1
  • 6 Appareillage
    2
  • 7 Préparation des étalons de couleur
    2
  • 8 Échantillonnage
    3
  • 9 Mode opératoire
    3
  • 10 Expression des résultats
    4
  • 11 Fidélité
    4
  • 12 Rapport d'essai
    5
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