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

Status
Published
Public Enquiry End Date
29-May-2014
Publication Date
26-Jan-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
15-Jan-2016
Due Date
21-Mar-2016
Completion Date
27-Jan-2016

Relations

Buy Standard

Standard
SIST EN ISO 6271:2016
English language
13 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

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.

---------------------- Page: 1 ----------------------
SIST EN ISO 6271:2016
---------------------- Page: 2 ----------------------
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.
---------------------- Page: 3 ----------------------
SIST EN ISO 6271:2016
EN ISO 6271:2015 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
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.

---------------------- Page: 5 ----------------------
SIST EN ISO 6271:2016
---------------------- Page: 6 ----------------------
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
---------------------- Page: 7 ----------------------
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.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 8 ----------------------
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
---------------------- Page: 9 ----------------------
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

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

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
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.