ISO 6271:2015
p
ISO 6271:2015
63300

Abstract  Preview



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".


General information 

  •  :  Published
     : 2015-12
  •  : 3
     : 6
  •  : ISO/TC 35 Paints and varnishes
  •  :
    87.060.20 Binders

Buy this standard

en
Format Language
std 1 38 PDF
std 2 38 Paper
  • CHF38

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.