Water quality - Examination and determination of colour (ISO 7887:2011)

ISO 7887:2011 specifies four different methods, designated A to D, for the examination of colour.
The previously most employed method for assessment of water colour in water treatment plants, limnological surveys, etc. was based on the hexachloroplatinate scale. Methods C and D are harmonized with this traditional procedure.
Method A involves 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 can be reported.
Method B involves 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. A subclause on interferences is included.
Method C involves determination of the true colour of a water sample using optical apparatus for comparison with hexachloroplatinate concentration at wavelength, λ = 410 nm. A subclause on interferences is included.
Method D involves determination of colour by visual comparison with hexachloroplatinate standard solutions and can be applied to raw and drinking water. A subclause on interferences is included.
Methods A and B are appropriate if the colour hue of the sample differs from the hue of the matching solution.
When stating the result, the procedure used (methods A to D) is also recorded.

Wasserbeschaffenheit - Untersuchung und Bestimmung der Färbung (ISO 7887:2011)

Diese Internationale Norm legt vier verschiedene Verfahren, als A bis D benannt, zur Bestimmung der Färbung fest.
Das bisher bei der Beurteilung der Färbung von Wasser in Wasseraufbereitungsanlagen, bei limnologischen Untersuchungen usw. am häufigsten angewendete Verfahren beruht auf der Hexachloroplatinat Skala [1]. Die Verfahren C und D sind mit diesem herkömmlichen Verfahren [2] und [3] abgestimmt.
Verfahren A beinhaltet ein Verfahren zur Untersuchung der scheinbaren Färbung durch Betrachtung einer Wasser¬probe in einer Flasche. Damit wird nur eine vorläufige Information erhalten, beispielsweise bei Untersuchungen vor Ort. Das Ergebnis kann nur als scheinbare Färbung angegeben werden.
Verfahren B beinhaltet ein Verfahren zur Bestimmung der wahren Färbung einer Wasserprobe mit Hilfe eines optischen Gerätes. Es ist auf Roh  und Trinkwasser und auf schwach gefärbtes Industrieabwasser anwendbar. Zu Störungen siehe entsprechender Abschnitt.
Verfahren C beinhaltet ein Verfahren zur Bestimmung der wahren Färbung einer Wasserprobe mit Hilfe eines optischen Gerätes zum Vergleich mit einer Hexachloroplatinat Konzentration bei einer Wellenlänge von λ = 410 nm. Zu Störungen siehe entsprechender Abschnitt.
Verfahren D beinhaltet ein Verfahren zur Bestimmung der Färbung durch visuellen Vergleich mit Hexachloroplatinat Standardlösungen. Es kann auf Roh  und Trinkwasser angewendet werden. Zu Störungen siehe entsprechender Abschnitt.
Die Verfahren C und D werden empfohlen, wenn sich der Farbton der Probe vom Farbton der Vergleichslösung unterscheidet.
ANMERKUNG 1   Unter Umständen ist es erforderlich, stark gefärbte Wässer vor der Untersuchung oder Bestimmung zu verdünnen. Das kann jedoch die physikalisch chemischen Bedingungen verändern und zu einer Farbänderung führen.
ANMERKUNG 2   In dieser Internationalen Norm beschreibt Anhang A eine interne Qualitätskontrolle für alle Verfahren.
Bei der Angabe des Ergebnisses ist das angewendete Verfahren (Verfahren A bis D) unbedingt mit anzu-geben.

Qualité de l'eau - Examen et détermination de la couleur (ISO 7887:2011)

L'ISO 7887:2011 spécifie quatre méthodes différentes, désignées A à D, d'examen de la couleur.
La méthode qui était la plus couramment utilisée pour l'évaluation de la couleur de l'eau dans les installations de traitement de l'eau, les études limnologiques, etc. était basée sur l'échelle de couleur à l'hexachloroplatinate. Les méthodes C et D sont harmonisées avec cette méthode traditionnelle.
La méthode A implique l'examen de la couleur apparente par observation visuelle d'un échantillon d'eau dans une bouteille. Cette méthode donne uniquement une première indication, pour une application sur le terrain, par exemple. Seule la couleur apparente peut être déterminée.
La méthode B implique la détermination de la couleur vraie d'un échantillon d'eau au moyen d'un appareillage optique, et peut être appliquée aux eaux brutes et potables, ainsi qu'aux eaux industrielles faiblement colorées. Un paragraphe concernant les interférences est inclus.
La méthode C implique la détermination de la couleur vraie d'un échantillon d'eau au moyen d'un appareillage optique par comparaison avec la concentration d'hexachloroplatinate à une longueur d'onde λ = 410 nm. Un paragraphe concernant les interférences est inclus.
La méthode D implique la détermination de la couleur par comparaison visuelle avec des solutions étalons d'hexachloroplatinate et peut être appliquée aux eaux brutes et potables. Un paragraphe concernant les interférences est inclus.
Les méthodes A et B sont appropriées si la teinte de l'échantillon diffère de celle de la solution étalon.
Dans le rapport d'essai, le mode opératoire utilisé (méthodes A à D) est également consigné.

Kakovost vode - Pregled in določevanje barve (ISO 7887:2011)

Ta mednarodni standard določa štiri različne metode, označene od A do D, za pregled barve. V preteklosti najpogosteje uporabljana metoda za presojo barve vode v čistilnih napravah, pri limnoloških raziskavah itd. je temeljila na lestvici heksakloroplatinata. Metodi C in D sta usklajeni s tem tradicionalnim postopkom. Metoda A vključuje presojo dejanske barve z vizualnim opazovanjem vodnega vzorca v steklenici. To daje samo predhodne informacije, na primer pri uporabi na terenu. Poročati je mogoče samo o dejanski barvi. Metoda B vključuje določevanje realne barve vodnega vzorca z optično napravo in se uporablja za neobdelano in pitno vodo ter industrijsko vodo, ki ni močno obarvana. Vključena je podtočka o motnjah. Metoda C vključuje določevanje realne barve vodnega vzorca z optično napravo za primerjavo s koncentracijo heksakloroplatinata pri valovni dolžini – 410 nm. Vključena je podtočka o motnjah. Metoda D vključuje določevanje barve z vizualno primerjavo s standardnimi raztopinami heksakloroplatinata in se lahko uporablja za neobdelano in pitno vodo. Vključena je podtočka o motnjah. Metodi A in B sta ustrezni, če se barvni odtenek vzorca razlikuje od odtenka ujemajoče se raztopine. Pri navajanju rezultata se zabeleži tudi uporabljeni postopek (metode od A do D).

General Information

Status
Published
Publication Date
14-Dec-2011
Withdrawal Date
29-Jun-2012
Technical Committee
Drafting Committee
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
15-Dec-2011
Due Date
13-Sep-2010
Completion Date
15-Dec-2011

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7887:2012
01-junij-2012
1DGRPHãþD
dSIST ISO/DIS 7887:2009
SIST EN ISO 7887:1996
.DNRYRVWYRGH3UHJOHGLQGRORþHYDQMHEDUYH ,62
Water quality - Examination and determination of colour (ISO 7887:2011)
Wasserbeschaffenheit - Untersuchung und Bestimmung der Färbung (ISO 7887:2011)
Qualité de l'eau - Examen et détermination de la couleur (ISO 7887:2011)
Ta slovenski standard je istoveten z: EN ISO 7887:2011
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
SIST EN ISO 7887:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7887:2012

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SIST EN ISO 7887:2012


EUROPEAN STANDARD
EN ISO 7887

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2011
ICS 13.060.60 Supersedes EN ISO 7887:1994
English Version
Water quality - Examination and determination of colour (ISO
7887:2011)
Qualité de l'eau - Examen et détermination de la couleur Wasserbeschaffenheit - Untersuchung und Bestimmung
(ISO 7887:2011) der Färbung (ISO 7887:2011)
This European Standard was approved by CEN on 14 December 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.




EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7887:2011: E
worldwide for CEN national Members.

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SIST EN ISO 7887:2012
EN ISO 7887:2011 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 7887:2012
EN ISO 7887:2011 (E)
Foreword
This document (EN ISO 7887:2011) has been prepared by Technical Committee ISO/TC 147 "Water quality"
in collaboration with Technical Committee CEN/TC 230 “Water analysis” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at
the latest by June 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 7887:1994.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 7887:2011 has been approved by CEN as a EN ISO 7887:2011 without any modification.

3

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SIST EN ISO 7887:2012

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SIST EN ISO 7887:2012

INTERNATIONAL ISO
STANDARD 7887
Third edition
2011-12-15

Water quality — Examination and
determination of colour
Qualité de l'eau — Examen et détermination de la couleur





Reference number
ISO 7887:2011(E)
©
ISO 2011

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SIST EN ISO 7887:2012
ISO 7887:2011(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication
...

SLOVENSKI STANDARD
oSIST prEN ISO 7887:2009
01-junij-2009
.DNRYRVWYRGH3UHJOHGLQGRORþHYDQMHEDUYH ,62',6
Water quality - Examination and determination of colour (ISO/DIS 7887:2009)
Wasserbeschaffenheit - Untersuchung und Bestimmung der Färbung (ISO/DIS
7887:2009)
Qualité de l'eau - Examen et détermination de la couleur (ISO/DIS 7887:2009)
Ta slovenski standard je istoveten z: prEN ISO 7887
ICS:
13.060.60 Preiskava fizikalnih lastnosti Examination of physical
vode properties of water
oSIST prEN ISO 7887:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 7887:2009

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oSIST prEN ISO 7887:2009
EUROPEAN STANDARD
DRAFT
prEN ISO 7887
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2009
ICS 13.060.60 Will supersede EN ISO 7887:1994
English Version
Water quality - Examination and determination of colour
(ISO/DIS 7887:2009)
Qualité de l'eau - Examen et détermination de la couleur Wasserbeschaffenheit - Untersuchung und Bestimmung
(ISO/DIS 7887:2009) der Färbung (ISO/DIS 7887:2009)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 230.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 7887:2009: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN ISO 7887:2009
prEN ISO 7887:2009 (E)
Contents Page
Foreword .3

2

---------------------- Page: 4 ----------------------
oSIST prEN ISO 7887:2009
prEN ISO 7887:2009 (E)
Foreword
This document (prEN ISO 7887:2009) has been prepared by Technical Committee ISO/TC 147 "Water
quality" in collaboration with Technical Committee CEN/TC 230 “Water analysis”, the secretariat of which is
held by DIN.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 7887:1994.
Endorsement notice
The text of ISO/DIS 7887:2009 has been approved by CEN as a prEN ISO 7887:2009 without any
modification.

3

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oSIST prEN ISO 7887:2009

---------------------- Page: 6 ----------------------
oSIST prEN ISO 7887:2009
DRAFT INTERNATIONAL STANDARD ISO/DIS 7887
ISO/TC 147/SC 2 Secretariat: DIN
Voting begins on: Voting terminates on:
2009-04-02 2009-09-02
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Water quality — Examination and determination of colour
Qualité de l'eau — Examen et détermination de la couleur
[Revision of second edition (ISO 7887:1994)]
ICS 13.060.60

ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
In accordance with the provisions of Council Resolu
...

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