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Norm
ISO 7887:1994
Issue date: 1994 08 25
Water quality — Examination and determination of colour
Cancels and replaces the first edition (1985). Specifies three methods for the examination of colour: a method for the examination of apparent colour by visually observin...
Withdrawn: 2011 12 16
Publisher:
International Organization for Standardization
Format:
Digital | 8 Pages
Language:
English
Currently valid:
ICS
Cancels and replaces the first edition (1985). 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.
