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Norm

ÖNORM EN ISO 7887

Issue date: 1995 02 01

Water quality - Examination and determination of colour (ISO 7887:1994)

This International Standard specifies three methods for the examination of colour. Section 2 specifies a method for the examination of apparent colour by visually obse...
Withdrawn: 2012 04 15
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 9 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This International Standard specifies three methods for the examination of colour. Section 2 specifies a method for the examination of apparent colour by visually observing a water Sample in a bottle. This gives only preliminary information, for example for use in field work. Only the apparent colour tan be reported. Section 3 specifies a method for the determination of the true colour of a water Sample using Optical apparatus and is applicable to raw and potable water and to industrial water of low colour. For interferences, see 3.3. Section 4 specifies a method for the determination of the colour by visual comparison with hexachloroplatinate Standard solutions and may be applied to raw and drinking water. For interferences, see 4.2. Under certain circumstances, strongly coloured water samples need to be diluted before examination or determination. When stating the result, it is absolutely necessary to refer to the applied method.
ÖNORM EN ISO 7887
2012 04 15
Water quality - Examination and determination of colour (ISO 7887:2011)
Norm
ÖNORM EN ISO 7887
1995 02 01
Water quality - Examination and determination of colour (ISO 7887:1994)
Norm
ÖNORM M 6240
1988 09 01
Water quality; examination and determination of colour
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ISO 10523:1994
Issue date : 1994 07 28
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ÖNORM EN ISO 7887
Issue date : 2012 04 15
Water quality - Examination and determination of colour (ISO 7887:2011)
Norm
ISO 7887:1994
Issue date : 1994 08 25
Water quality — Examination and determination of colour
Verordnung
Verordnung des Bundesministers für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft über die Begrenzung von Abwasseremissionen aus der Textilveredelung und Behandlung (AEV Textilverede