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Norm
ÖNORM EN ISO 7027
Issue date: 2000 05 01
Water quality - Determination of turbidity (ISO 7027:1999)
This International Standard specifies four methods for the determination of turbidity of water. Two semiquantitative methods, employed for example in field work, are spec...
Withdrawn: 2019 06 15
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
ICS
This International Standard specifies four methods for the determination of turbidity of water. Two semiquantitative methods, employed for example in field work, are specified:
a) measurement of turbidity using the transparency testing tube (applicable to pure and lightly polluted water);
b) measurement of turbidity using the transparency testing disk (especially applicable to surface water).
Two quantitative methods, using optical turbidimeters, are specified:
c) measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water);
Turbidity measured by this method is expressed in formazin nephelometric units (FNU); results typically range
between 0 FNU and 40 FNU. Depending on the instrument design, it may also be applicable to waters of higher turbidity.
d) measurement of the attenuation of a radiant flux, more applicable to highly turbid waters (for example waste or polluted waters).
Turbidity measured by this method is expressed in formazin attenuation units (FAU); results typically range between 40 FAU and 4000 FAU.
ÖNORM EN ISO 7027-2
2019 06 15
Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of...
Norm
ÖNORM EN ISO 7027-1
2016 10 15
Water quality - Determination of turbidity - Part 1: Quantitative methods (ISO 7027-1:2016)
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2007 09 01
Water quality - Sampling - Part 3: Guidance on the preservation and handling of water samples (ISO 5667-3:2003) (consolidated version)
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Issue date :
1994 07 28
Water quality — Sampling — Part 3: Guidance on the preservation and handling of samples
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Issue date :
2016 10 15
Water quality - Determination of turbidity - Part 1: Quantitative methods (ISO 7027-1:2016)
Norm
Issue date :
2019 06 15
Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO 7027-2:2019)
Verordnung
Verordnung des Bundesministers für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft, mit der die DVO 2008 geändert wird
Verordnung
Verordnung der Bundesministerin für Klimaschutz, Umwelt, Energie, Mobilität, Innovation und Technologie, mit der die Deponieverordnung 2008 geändert wird
Verordnung
Verordnung des Bundesministers für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft über ein Abfallverzeichnis (Abfallverzeichnisverordnung)
Verordnung
Verordnung des Bundesministers für Land- und Forstwirtschaft, Umwelt und Wasserwirtschaft über Deponien (Deponieverordnung 2008)