BS EN ISO 6271-2:2004
Clear liquids - Estimation of colour by the platinum-cobalt scale - Spectrophotometric method

Standard No.

BS EN ISO 6271-2:2004

Release Date

2004

Published By

British Standards Institution (BSI)

Status

Be replaced 2016-01

Replace By

BS EN ISO 6271:2015

Latest

BS EN ISO 6271:2015

Replace

02/122893 DC:2002

Scope

This part of ISO 6271 specifies a spectrophotometric method for estimating the colour, in Pt-Co units, of clear liquids. It is applicable to clear liquids having a colour characteristic similar to those of the reference platinum-cobalt scale specified in ISO 6271-1. The method described provides a more precise way of measuring Pt-Co colour than that described in ISO 6271-1. NOTE The term "platinum-cobalt colour (Pt-Co colour)" used here is preferred over the terms "Hazen colour" and "APHA colour".

BS EN ISO 6271-2:2004 history

• 2016 BS EN ISO 6271:2015 Clear liquids. Estimation of colour by the platinum-cobalt colour scale
• 2004 BS EN ISO 6271-2:2004 Clear liquids - Estimation of colour by the platinum-cobalt scale - Spectrophotometric method

BS EN ISO 6271-2:2004 Clear liquids - Estimation of colour by the platinum-cobalt scale - Spectrophotometric method was changed to BS EN ISO 6271:2015 Clear liquids. Estimation of colour by the platinum-cobalt colour scale.