EN ISO 7393-2:2000
(Main)Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine, for routine control purposes (ISO 7393-2:1985)
Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine, for routine control purposes (ISO 7393-2:1985)
Specifies a procedure for water, readily applicable to field testing; it is based on measurement of the colour intensity by visual comparison of the colour with a scale of standards which is regularly calibrated. Sea water and waters containing bromides and iodides comprise a group for which special procedures are required. The procedure is applicable to concentrations, in terms of chlorine, from 0,000 4 to 0,07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interferences of the procedure are noted.
Wasserbeschaffenheit - Bestimmung von freiem Chlor und Gesamtchlor - Teil 2: Kolorimetrisches Verfahren mit N, N-Diethyl-1, 4-Phenylendiam für Routinekontrollen (ISO 7393-2:1985)
Dieser Teil von ISO 7393 enthält einlegt ein Verfahren zur Bestimmung von freiem Chlor und Gesamtchlor in Wasser, das bequem bei Feldversuchen anwendbar ist, fest; es beruht auf der Messung der Farbintensität durch visuellen Vergleich der Farbe mit einer Skala von regelmäßig kalibrierten Farbstandards. Meerwasser sowie bromid- und iodidhaltiges Wasser bilden eine Gruppe, für die besondere Verfahren erforderlich sind.
Qualité de l'eau - Dosage du chlore libre et du chlore total - Partie 2: Méthode colorimétrique à la N, N-diéthylphénylène-1, 4-diamine destinée aux contrôles de routine (ISO 7393-2:1985)
La présente partie de l'ISO 7393 spécifie une méthode pour le dosage du chlore libre et du chlore total dans l'eau, aisément applicable sur le terrain d'essai; elle est basée sur le mesurage de l'intensité de la couleur par comparaison visuelle de la couleur avec une échelle d'étalons régulièrement vérifiée par étalonnage.L'eau de mer et les eaux contenant des bromures et des iodures constituent un groupe pour lequel des procédés particuliers sont nécessaires. [2]Cette méthode est applicable à des concentrations en chlore total, exprimées en chlore (Cl2) de 0,000 4 à 0,07 mmol/l (0,03 à 5 mg/l). Pour des concentrations plus élevées, la prise d'essai doit être diluée. Si la rapidité d'exécution et l'encombrement de l'équipement ne sont pas prépondérants, un mesurage spectrométrique peut être pratiqué en alternative.Dans l'annexe A, un mode opératoire est décrit pour la différenciation du chlore combiné du type monochloramine, du chlore combiné du type dichloramine et du chlore combiné sous la forme de trichlorure d'azote.
Kakovost vode - Določevanje prostega in celotnega klora - 2. del: Kolorimetrijska metoda z uporabo N,N-dietil-1,4-fenildiamina za potrebe redne kontrole (ISO 7393-2:1985)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 7393-2:2000
01-december-2000
1DGRPHãþD
SIST ISO 7393-2:1996
.DNRYRVWYRGH'RORþHYDQMHSURVWHJDLQFHORWQHJDNORUDGHO .RORULPHWULMVND
PHWRGD]XSRUDER11GLHWLOIHQLOGLDPLQD]DSRWUHEHUHGQHNRQWUROH ,62
Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric
method using N, N-diethyl-1, 4-phenylenediamine, for routine control purposes (ISO
7393-2:1985)
Wasserbeschaffenheit - Bestimmung von freiem Chlor und Gesamtchlor - Teil 2:
Kolorimetrisches Verfahren mit N, N-Diethyl-1, 4-Phenylendiam für Routinekontrollen
(ISO 7393-2:1985)
Qualité de l'eau - Dosage du chlore libre et du chlore total - Partie 2: Méthode
colorimétrique a la N, N-diéthylphénylene-1, 4-diamine destinée aux contrôles de routine
(ISO 7393-2:1985)
Ta slovenski standard je istoveten z: EN ISO 7393-2:2000
ICS:
13.060.50 3UHLVNDYDYRGHQDNHPLþQH Examination of water for
VQRYL chemical substances
SIST EN ISO 7393-2:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 7393-2:2000
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SIST EN ISO 7393-2:2000
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SIST EN ISO 7393-2:2000
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SIST EN ISO 7393-2:2000
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME>KJjYtiAPOJJHAR OPTAHM3AL&lR I-IO CTAH~APTM3Al$4Ll~ORGANISATION INTERNATIONALE DE NORMALISATION
Water quality - Determination of free chlorine and total
chlorine -
Part 2 : Colorimetric method using
N,A/-diethyl-1,4=phenylenediamine, for routine control
purposes
Quake de l’eau - Dosage du chlore libre et du chlore total - Partie 2 : Methode colorlmetrique A Ia
N, N-d% th ylphen yl&ne- 1,4 diamine destinbe aux con trOles de reu tine
First edition - 1985-10-15
UDC 543.3: 543.43: 546.13 Ref. No. ISO 7393/2-1985 (E)
: water, quality, Chemical analysis, determination of content, chlorine, colorimetric analysis.
Descriptors
Price based on 8 pages
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SIST EN ISO 7393-2:2000
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of
national Standards bodies (ISO member bodies). The work of preparing International
Standards is normally carried out through ISO technical committees. Esch 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 ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 7393/2 was prepared by Technical Committee
ISO/TC 147, Water quality.
0
0 International Organkation for Standardkation, 1985
Printed in Switzerland
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SIST EN ISO 7393-2:2000
ISO 7393/2-1985 (E)
INTERNATIONAL STANDARD
Water quality - Determination of free chlorine and
total chlorine -
Part 2: Colorimetric method using
N,A/-diethyl-1,4=phenylenediamine, for routine control
purposes
2 Definitions (sec table 1)
0 Introduction
For the purpose of this part of ISO 7393, the following defini-
ISO 7393 consists of the following Parts:
tions apply.
Part 1 : Titrimetric method using
N, N-diethyl-1,4-phenylenediamine.
2.1 free chlorine: Chlorine present in the form of
hypochlorous acid, hypochlorite ion or dissolved elemental
Part 2: Colorimetric method using
chlorine.
N, N-diethyl-1,4-phenylenediamine, for routine control
purposes.
2.2 combined chlorine: The fraction of total chlorine
Part 3: lodometric titration method for the determination of
present in the form of chloramines and organic chloramines.
total chlorine. l)
2.3 total chlorine: Chlorine present in the form of “free
chlorine” or “combined chlorine” or both.
1 Scope and field of application
This part of ISO 7393 specifies a method for the determination
2.4 chloramines : Derivatives of ammonia by Substitution of
of free chlorine and total chlorine in water, readily applicable to
one, two or three hydrogen atoms with chlorine atoms
field testing; it is based on measurement of the colour intensity
(monochloramine NH&I, dichloramine NHCI,, nitrogen
by visual comparison of the colour with a scale of Standards
trichloride NCI,) and all chlorinated derivatives of organic
which is regularly calibrated.
nitrogen compounds as determined by the method specified in
this part of ISO 7393.
Sea water and waters containing bromi
...
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