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CEN

EN ISO 7027:1999

(Main)

Water quality - Determination of turbidity (ISO 7027:1999)

Water quality - Determination of turbidity (ISO 7027:1999)

Migrated from Progress Sheet (TC Comment) (2000-07-10): N 315: New TD (980916)

Wasserbeschaffenheit - Bestimmung der Trübung (ISO 7027:1990)

Diese Internationale Norm legt vier Verfahren zur Bestimmung der Trübung von Wasser fest. Zwei halbquantitative Verfahren, die Beispielsweise für Feldmessungen eingesetzt werden: a) Verfahren mit dem Durchsichtigkeitßylinder (geeignet für reine und leicht verschmutzte Wässer); b) Verfahren, die auf der Erkennbarkeit von Sichtscheiben beruhen (besonders geeignet für Oberflächenwässer).

Quantité de l'eau - Détermination de la turbidité (ISO 7027:1990)

La présente Norme internationale prescrit quatre méthodes de détermination de la turbidité de l'eau.Deux méthodes semi-quantitatives utilisés, par exemple, sur le terrain, sont spécifiées:a) méthode faisant appel à un tube d'évaluation de la transparence (applicable aux eaux pures et aux eaux de faible turbidité);b) méthode faisant appel à un disque d'évaluation de la transparence (applicable notamment aux eaux de surface).Deux méthodes quantitatives faisant appel à des turbidimètres optiques sont spécifiées:c) méthode par mesurage de la lumière diffusée, applicable aux eaux de faible turbidité (par exemple eaux de boisson);La turbidité mesurée selon cette méthode est exprimée en unités néphélométriques formazine (FNU), normalement dans la gamme entre 0 FNU et 40 FNU. Selon les caractéristiques de l'appareillage, elle peut être également utilisée pour des eaux de plus forte turbidité.d) méthode par mesurage de l'atténuation de la lumière incidente, plus appropriée aux eaux de forte turbidité (par exemple eaux résiduaires ou polluées).La turbidité mesurée selon cette méthode est exprimée en unités d'atténuation formazine (FAU), normalement dans la gamme entre 40 FAU et 4 000 FAU.

Kakovost vode - Ugotavljanje motnosti (ISO 7027:1999)

General Information

Status
Withdrawn
Publication Date
14-Dec-1999
Withdrawal Date
28-Jun-2016
ICS
13.060.01 - Water quality in general
Technical Committee
CEN/TC 230 - Water analysis
Drafting Committee
CEN/TC 230/WG 1 - Physical and biochemical methods
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
29-Jun-2016
Ref Project
SIST EN ISO 7027:2000 - Water quality - Determination of turbidity (ISO 7027:1999)

Relations

Replaces
EN 27027:1994 - Water quality - Determination of turbidity (ISO 7027:1990)
Effective Date
22-Dec-2008
Replaced By
EN ISO 7027-1:2016 - Water quality - Determination of turbidity - Part 1: Quantitative methods (ISO 7027-1:2016)
Effective Date
08-Jun-2022
Replaced By
EN ISO 7027-2:2019 - Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of transparency of waters (ISO 7027-2:2019)
Effective Date
08-Jun-2022

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SLOVENSKI STANDARD
SIST EN ISO 7027:2000
01-december-2000
1DGRPHãþD
SIST EN 27027:1996
Kakovost vode - Ugotavljanje motnosti (ISO 7027:1999)
Water quality - Determination of turbidity (ISO 7027:1999)
Wasserbeschaffenheit - Bestimmung der Trübung (ISO 7027:1990)
Quantité de l'eau - Détermination de la turbidité (ISO 7027:1990)
Ta slovenski standard je istoveten z: EN ISO 7027:1999
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
SIST EN ISO 7027:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7027:2000

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SIST EN ISO 7027:2000

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SIST EN ISO 7027:2000

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SIST EN ISO 7027:2000
INTERNATIONAL ISO
STANDARD 7027
Third edition
1999-12-15
Water quality — Determination of turbidity
Qualité de l'eau — Détermination de la turbidité
Reference number
ISO 7027:1999(E)
©
ISO 1999

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SIST EN ISO 7027:2000
ISO 7027:1999(E)
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ii © ISO 1999 – All rights reserved

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SIST EN ISO 7027:2000
ISO 7027:1999(E)
Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Terms and definitions.1
4 Sampling and samples.2
5 Semiquantitative methods of turbidity measurement.2
5.1 Measurement using the transparency testing tube.2
5.2 Measurement using the transparency testing disk .2
6 Quantitative methods of turbidity measurement using optical turbidimeters.3
6.1 General principles .3
6.2 Reagents.4
6.3 Measurement of diffuse radiation .5
6.4 Measurement of attenuated radiation.6
Annex A (informative) Results of an interlaboratory collaborative trial
...

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