NEN-EN-ISO 7887
Water quality - Examination and determination of colour
inactive
| Organization: | NEN |
| Publication Date: | 1 December 1994 |
| Status: | inactive |
| Page Count: | 20 |
| ICS Code (Examination of physical properties of water): | 13.060.60 |
scope:
Specifies three methods for the examination of colour: a method for the examination of apparent colour by visually observing a water sample in a bottle; a method for the determination of the true colour of a water sample using optical apparatus; a method for the determination of the colour by visual comparison with hexachloroplatinate standard solutions. Under certain circumstances, strongly coloured water samples need to be diluted before examination or determination.
Document History
January 1, 2012
Water quality - Examination and determination of colour
This International Standard specifies four different methods, designated A to D, for the examination of colour. The previously most employed method for assessment of water colour in water treatment...
April 1, 2009
Water quality - Examination and determination of colour
This International Standard specifies four different methods, designated A to D, for the examination of colour. The previously most employed method for assessment of water colour in water treatment...
NEN-EN-ISO 7887
December 1, 1994
Water quality - Examination and determination of colour
Specifies three methods for the examination of colour: a method for the examination of apparent colour by visually observing a water sample in a bottle; a method for the determination of the true...