SIST EN ISO 6271:2016
(Main)Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
This International Standard specifies a spectrophotometric method for estimating the colour of clear
liquids in terms of platinum-cobalt units (Pt-Co units). It is applicable to clear liquids having a colour
characteristic similar to those of the platinum-cobalt colour scale specified in Annex A. For products
with colours more intense than the Pt-Co stock solution the method specified in ISO 4630 applies.
The spectrophotometric method provides a more precise way of measuring Pt-Co colour than a visual
sample comparison by human eyes.
NOTE The term “Pt-Co colour” used here is preferred over the terms “Hazen colour” and “APHA colour”.
Klare Flüssigkeiten - Bestimmung der Farbe nach der Platin-Cobalt-Farbskala (ISO 6271:2015)
Diese Internationale Norm legt ein spektralphotometrisches Verfahren zum Beurteilen der Farbe von klaren Flüssigkeiten in Platin-Cobalt-Einheiten (Pt-Co-Einheiten) fest. Es ist anwendbar auf klare Flüssigkeiten, die eine ähnliche Farbcharakteristik wie die im Anhang A festgelegte Platin-Cobalt-Farbskala besitzen. Für Pro¬dukte mit einer intensiveren Farbe als die der Pt-Co-Stammlösung gilt die Methode nach ISO 4630.
Das beschriebene Verfahren erlaubt es, die Pt-Co-Farbzahl genauer zu messen, als der visuelle Vergleich von Proben mit dem menschlichen Auge.
ANMERKUNG Die Benennung "Pt-Co-Farbzahl" wird den Benennungen "Hazen-Farbzahl" und "APHA-Farb¬zahl" vor-ge¬zogen.
Liquides clairs - Évaluation de la couleur au moyen de l'échelle platine-cobalt (ISO 6271:2015)
ISO 6271:2015 spécifie une méthode spectrophotométrique permettant d'évaluer la couleur des liquides clairs, en unités de l'échelle platine-cobalt (unités Pt-Co). Elle est applicable aux liquides clairs ayant des caractéristiques colorimétriques similaires à celles de l'échelle de couleur platine-cobalt spécifiée dans l'Annexe A. Pour les produits de couleur plus intense que la solution mère de platine-cobalt, la méthode spécifiée dans l'ISO 4630 s'applique.
La méthode spectrophotométrique permet de mesurer une couleur Pt-Co de façon plus précise qu'en effectuant une comparaison visuelle des échantillons à l'?il nu.
NOTE Le terme "couleur Pt-Co" utilisé ici est préférable aux termes "couleur Hazen" et "couleur APHA".
Prozorne tekočine - Ocenjevanje barve s platina-kobaltovo barvno lestvico (ISO 6271:2015)
Ta mednarodni standard določa spektrometrično metodo za ocenjevanje barve čistih
tekočin na podlagi platina-kobaltovih enot (enote Pt-Co). Uporablja se za tekočine z barvnimi
lastnostmi, ki so podobne barvnim lastnostim platina-kobaltove lestvice, ki je navedena v dodatku A. Za izdelke
intenzivnejših barv od vrednosti standardne lestvice Pt-Co se uporablja metoda, določena v standardu ISO 4630.
Za merjenje barv Pt-Co je spektrometrična metoda natančnejša od vizualne
primerjave vzorcev s človeškimi očmi.
OPOMBA: Izraz »barva Pt-Co«, ki se uporablja v tem standardu, ima prednost pred izrazi »barva Hazen« in »barva APHA«.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 6271:2016
01-marec-2016
1DGRPHãþD
SIST EN ISO 6271-1:2005
SIST EN ISO 6271-2:2005
3UR]RUQHWHNRþLQH2FHQMHYDQMHEDUYHVSODWLQDNREDOWRYREDUYQROHVWYLFR ,62
Clear liquids - Estimation of colour by the platinum-cobalt colour scale (ISO 6271:2015)
Klare Flüssigkeiten - Bestimmung der Farbe nach der Platin-Cobalt-Farbskala (ISO
6271:2015)
Liquides clairs - Évaluation de la couleur au moyen de l'échelle platine-cobalt (ISO
6271:2015)
Ta slovenski standard je istoveten z: EN ISO 6271:2015
ICS:
17.180.20 Barve in merjenje svetlobe Colours and measurement of
light
87.060.99 Druge sestavine barv Other paint ingredients
SIST EN ISO 6271:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 6271:2016
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SIST EN ISO 6271:2016
EN ISO 6271
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2015
EUROPÄISCHE NORM
ICS 87.060.20 Supersedes EN ISO 6271-1:2004, EN ISO 6271-2:2004
English Version
Clear liquids - Estimation of colour by the platinum-cobalt
colour scale (ISO 6271:2015)
Liquides clairs - Évaluation de la couleur au moyen de Klare Flüssigkeiten - Bestimmung der Farbe nach der
l'échelle platine-cobalt (ISO 6271:2015) Platin-Cobalt-Farbskala (ISO 6271:2015)
This European Standard was approved by CEN on 1 November 2015.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6271:2015 E
worldwide for CEN national Members.
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SIST EN ISO 6271:2016
EN ISO 6271:2015 (E)
Contents Page
European foreword . 3
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SIST EN ISO 6271:2016
EN ISO 6271:2015 (E)
European foreword
This document (EN ISO 6271:2015) has been prepared by Technical Committee ISO/TC 35 "Paints and
varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” 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 2016, and conflicting national standards shall be
withdrawn at the latest by June 2016.
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 6271-1:2004, EN ISO 6271-2:2004.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 6271:2015 has been approved by CEN as EN ISO 6271:2015 without any modification.
3
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SIST EN ISO 6271:2016
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SIST EN ISO 6271:2016
INTERNATIONAL ISO
STANDARD 6271
Third edition
2015-12-01
Clear liquids — Estimation of colour
by the platinum-cobalt colour scale
Liquides clairs — Évaluation de la couleur au moyen de l’échelle
platine-cobalt
Reference number
ISO 6271:2015(E)
©
ISO 2015
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SIST EN ISO 6271:2016
ISO 6271:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
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SIST EN ISO 6271:2016
ISO 6271:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus and materials. 1
5 Sampling . 2
6 Procedure. 2
7 Expression of results . 2
8 Precision . 2
8.1 General . 2
8.2 Repeatability limit, r .2
8.3 Reproducibility limit, R .2
8.4 Bias . 3
9 Test report . 3
Annex A (normative) Platinum-cobalt colour standards . 4
Bibliography . 6
© ISO 2015 – All rights reserved iii
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SIST EN ISO 6271:2016
ISO 6271:2015(E)
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. 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
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see ww
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