EN ISO 7393-3:2000

Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine (ISO 7393-3:1990)

Specifies a procedure for water. It is applicable for the measurement of concentrations, in terms of chlorine, from 0,01 to 0,21 mmol/l. The interfering substances are given. In annex B a procedure for direct titration is specified. It is usually applied to chlorine concentrations above 7 mol/l in treated drinking water.

Wasserbeschaffenheit - Bestimmung von freiem Chlor und Gesamtchlor - Teil 3: Iodometrisches Verfahren zur Bestimmung von Gesamtchlor (ISO 7393-3:1990)

Dieser Teil von ISO 7393 legt ein iodometrisches Titrationsverfahren zur Bestimmung von Gesamtchlor in Wasser fest. Das Verfahren eignet sich zur Bestimmung von Chlorkonzentrationen (Cl2) im Bereich von 0,01 mmol/l bis 0,21 mmol/l (0,71 mg/l bis 15 mg/l). Bei der Bestimmung stören mehrere Substanzen (siehe Abschnitt 10). Im Anhang B ist ein Verfahren für die direkte Titration festgelegt. Dieses Verfahren wird gewöhnlich bei der Bestimmung von Chlorkonzentrationen oberhalb 7 umol/l (o,5 mg/l) in behandeltem Trinkwasser angewendet.

Qualité de l'eau - Dosage du chlore libre et du chlore total - Partie 3: Méthode par titrage iodométrique pour le dosage du chlore total (ISO 7393-3:1990)

La présente partie de l'ISO 7393 prescrit une méthode par titrage iodométrique, pour le dosage du chlore total dans l'eau.La méthode est applicable à des concentrations, exprimées en chlore (Cl2), de 0,01 mmol/l à 0,21 mmol/l (0,71 mg/l à 15 mg/l).Plusieurs composés interfèrent dans le dosage (voir article 10).Une méthode par titrage direct est prescrite dans l'annexe B. La méthode par titrage direct est en général applicable à la détermination de concentrations de chlore supérieures à 7 µmol/l (0,5 mg/l) dans l'eau de boisson traitée.

Kakovost vode - Določevanje prostega in celotnega klora - 3. del: Jodometrijska titracijska metoda za ugotavljanje celotnega klora (ISO 7393-3:1990)

General Information

• Status: Published
• Publication Date: 26-Jan-2000
• ICS: 13.060 - Water quality
• Technical Committee: CEN/TC 230 - Water analysis
• Drafting Committee: CEN/TC 230/WG 1 - Physical and biochemical methods
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 21-May-2008
• Completion Date: 21-May-2008
• Directive: 98/83/EC - Quality of water intended for human consumption
• Ref Project: SIST EN ISO 7393-3:2000 - Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine (ISO 7393-3:1990)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7393-3:2000
01-december-2000
1DGRPHãþD
SIST ISO 7393-3:1996
.DNRYRVWYRGH'RORþHYDQMHSURVWHJDLQFHORWQHJDNORUDGHO-RGRPHWULMVND
WLWUDFLMVNDPHWRGD]DXJRWDYOMDQMHFHORWQHJDNORUD,62
Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric
titration method for the determination of total chlorine (ISO 7393-3:1990)
Wasserbeschaffenheit - Bestimmung von freiem Chlor und Gesamtchlor - Teil 3:
Iodometrisches Verfahren zur Bestimmung von Gesamtchlor (ISO 7393-3:1990)
Qualité de l'eau - Dosage du chlore libre et du chlore total - Partie 3: Méthode par titrage
iodométrique pour le dosage du chlore total (ISO 7393-3:1990)
Ta slovenski standard je istoveten z: EN ISO 7393-3:2000
ICS:
13.060.50 3UHLVNDYDYRGHQDNHPLþQH Examination of water for
VQRYL chemical substances
SIST EN ISO 7393-3:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7393-3:2000

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SIST EN ISO 7393-3:2000

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SIST EN ISO 7393-3:2000

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SIST EN ISO 7393-3:2000

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SIST EN ISO 7393-3:2000

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SIST EN ISO 7393-3:2000
IS0
INTERNATIONAL
7393-3
STANDARD
Second edition
1990-06-01
Determination of free chlorine
Water quality -
and total chlorine -
Part 3:
lodometric titration method for the determination of
total chlorine
- Dosage du &lore libre et du &lore total -
Quake’ de l’eau
Patiie 3: M&hode par titrage iodom&trigue pour le dosage du &lore total
Reference number
IS0 7393-3 : 1990 (El

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SIST EN ISO 7393-3:2000
IS0 7393-3 : 1990 0
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 7393-3 was prepared by Technical Committee ISO/TC 147,
Water quality.
This second edition cancels and replaces the first edition (IS0 7393-3 : 19861, of which
it constitutes a minor revision.
IS0 7393 consists of the following parts, under the general title Water quality - Deter-
mina tion of free chlorine and total chlorine :
-
Part I : Titrime tric method using N , N-die th yl- 7,4-phen ylenediamine
-
Part 2: Calorimetric method using NJ-diethyl- 1,4-phenylenediamine for
routine control purposes
-
Part 3: lodometric titration method for the determination of total chlorine
Annex A forms an integral part of this part of IS0 7393. Annexes B and C are for infor-
mation only.
0 IS0 1990
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland

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SIST EN ISO 7393-3:2000
INTERNATIONAL STANDARD IS0 7393-3 : 1990 (E)
Determination of free chlorine and total
Water quality -
chlorine -
Part 3:
lodometric titration method for the determination of total
chlorine
32 combined chlorine: The fraction of total chlorine
1 Scope
piesent in the form of chloramines and organic chloramines.
This part of IS0 7393 specifies an iodometric titration method
for the determination of total chlorine in water.
3.3 total chlorine: Chlorine present in the form of “free
chlorine” or “combined chlorine” or both.
The method is applicable for the measurement of concen-
trations in terms of chlorine (Cl& from 0,Ol mmol/l to
0,21 mmol/l (0,71 mg/I to 15 mg/l).
3.4 chloramines: Derivatives of ammonia by substitution of
one, two or three hydrogen atoms with chlorine atoms
Several substances interfere in the determination (see
(monochloramine NH&I, dichloramine NHCI,, and nitrogen
clause IO).
trichloride NC&) and all chlorinated derivatives of organic
.
nitrogen compounds.
In anne
...