Anodizing of aluminium and its alloys - Measurement of reflectance characteristics of aluminium surfaces using a goniophotometer or an abridged goniophotometer (ISO 7759:2010)

This International Standard specifies a method for the measurement of the reflectance characteristics of highgloss anodized aluminium surfaces. The method described is also suitable for the measurement of the reflectance characteristics of other highgloss metal surfaces. The method is not suitable for diffuse-finish metal surfaces and does not measure colour.

Anodisieren von Aluminium und Aluminiumlegierungen - Messung der Reflexionseigenschaften von Aluminiumoberflächen mit vereinfachtem oder Präzisions- Goniophotometer (ISO 7759:2010)

Diese Internationale Norm legt ein Verfahren zur Messung der Reflexionseigenschaften von hochglänzenden
anodisierten Aluminiumoberflächen fest.
Das beschriebene Verfahren ist ebenfalls zur Messung der Reflexionseigenschaften von anderen hochglänzenden
Metalloberflächen geeignet.
Das Verfahren ist weder für Oberflächen mit diffuser Reflexion noch zur Farbmessung geeignet.

Anodisation de l'aluminium et de ses alliages - Mesurage des caractéristiques de réflectivité des surfaces d'aluminium à l'aide d'un goniophotomètre normal ou simplifié (ISO 7759:2010)

L'ISO 7759:2010 spécifie une méthode de mesurage des caractéristiques de réflectivité des surfaces en aluminium anodisé à haute brillance.
La méthode décrite est également applicable au mesurage des caractéristiques de la réflectivité d'autres surfaces métalliques à haute brillance.
La méthode n'est pas applicable aux surfaces métalliques à finition diffuse et ne mesure pas la couleur.

Anodizacija aluminija in aluminijevih zlitin - Merjenje značilnic odbojnosti aluminijevih površin z goniofotometrom ali poenostavljenim goniofotometrom (ISO 7759:2010)

Ta mednarodni standard določa metodo za merjenje značilnic odbojnosti visokosijajnih anodiziranih aluminijevih površin. Opisana metoda je primerna tudi za merjenje značilnic odbojnosti drugih visokosijajnih kovinskih površin. Metoda ni primerna za kovinske površine z difuzno apreturo in ne meri barve.

General Information

Status
Published
Public Enquiry End Date
09-Nov-2009
Publication Date
30-Nov-2011
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
21-Nov-2011
Due Date
26-Jan-2012
Completion Date
01-Dec-2011

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SLOVENSKI STANDARD
SIST EN ISO 7759:2012
01-januar-2012
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SIST EN 12373-13:2002
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Anodizing of aluminium and its alloys - Measurement of reflectance characteristics of

aluminium surfaces using a goniophotometer or an abridged goniophotometer (ISO
7759:2010)
Anodisieren von Aluminium und Aluminiumlegierungen - Messung der

Reflexionseigenschaften von Aluminiumoberflächen mit vereinfachtem oder Präzisions-

Goniophotometer (ISO 7759:2010)
Anodisation de l'aluminium et de ses alliages - Mesurage des caractéristiques de

réflectivité des surfaces d'aluminium à l'aide d'un goniophotomètre normal ou simplifié

(ISO 7759:2010)
Ta slovenski standard je istoveten z: EN ISO 7759:2010
ICS:
25.220.20 Površinska obdelava Surface treatment
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
SIST EN ISO 7759:2012 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7759:2012
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SIST EN ISO 7759:2012
EUROPEAN STANDARD
EN ISO 7759
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2010
ICS 25.220.20 Supersedes EN 12373-13:2000
English Version
Anodizing of aluminium and its alloys - Measurement of
reflectance characteristics of aluminium surfaces using a
goniophotometer or an abridged goniophotometer (ISO
7759:2010)

Anodisation de l'aluminium et de ses alliages - Mesurage Anodisieren von Aluminium und Aluminiumlegierungen -

des caractéristiques de réflectivité des surfaces Messung der Reflexionseigenschaften von

d'aluminium à l'aide d'un goniophotomètre normal ou Aluminiumoberflächen mit einem Goniophotometer oder

simplifié (ISO 7759:2010) mit einem vereinfachten Goniophotometer (ISO 7759:2010)

This European Standard was approved by CEN on 31 August 2010.

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 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 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

© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7759:2010: E

worldwide for CEN national Members.
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SIST EN ISO 7759:2012
EN ISO 7759:2010 (E)
Contents Page

Foreword ..............................................................................................................................................................3

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SIST EN ISO 7759:2012
EN ISO 7759:2010 (E)
Foreword

The text of ISO 7759:2010 has been prepared by Technical Committee ISO/TC 79 "Light metals and their

alloys" of the International Organization for Standardization (ISO) and has been taken over as

EN ISO 7759:2010 by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys” the secretariat of

which is held by AFNOR.

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 March 2011, and conflicting national standards shall be withdrawn at

the latest by March 2011.

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 12373-13:2000.

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 7759:2010 has been approved by CEN as a EN ISO 7759:2010 without any modification.

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SIST EN ISO 7759:2012
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SIST EN ISO 7759:2012
INTERNATIONAL ISO
STANDARD 7759
Second edition
2010-09-01
Anodizing of aluminium and its alloys —
Measurement of reflectance
characteristics of aluminium surfaces
using a goniophotometer or an abridged
goniophotometer
Anodisation de l'aluminium et de ses alliages — Mesurage des
caractéristiques de réflectivité des surfaces d'aluminium à l'aide d'un
goniophotomètre normal ou simplifié
Reference number
ISO 7759:2010(E)
ISO 2010
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SIST EN ISO 7759:2012
ISO 7759:2010(E)
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ii © ISO 2010 – All rights reserved
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SIST EN ISO 7759:2012
ISO 7759:2010(E)
Contents Page

Foreword ............................................................................................................................................................iv

Introduction.........................................................................................................................................................v

1 Scope......................................................................................................................................................1

2 Normative references............................................................................................................................1

3 Terms and definitions ...........................................................................................................................1

4 Principle..................................................................................................................................................1

5 Apparatus...............................................................................................................................................2

6 Preparation and calibration of apparatus ...........................................................................................5

6.1 General conditions ................................................................................................................................5

6.2 Geometric conditions............................................................................................................................5

6.3 Spectral conditions ...............................................................................................................................6

6.4 Calibration..............................................................................................................................................6

7 Procedure...............................................................................................................................................6

8 Expression of results............................................................................................................................6

8.1 General...................................................................................................................................................6

8.2 Specular reflectance R .........................................................................................................................6

8.3 Distinctness of reflected image R .......................................................................................................6

8.4 Narrow-angle haze H ...........................................................................................................................6

8.5 Wide-angle haze H ...............................................................................................................................6

8.6 Diffuseness R .......................................................................................................................................7

8.7 Directionality D .....................................................................................................................................7

9 Test report..............................................................................................................................................7

Annex A (informative) Precision and accuracy of goniophotometers ..........................................................8

Bibliography........................................................................................................................................................9

© ISO 2010 – All rights reserved iii
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SIST EN ISO 7759:2012
ISO 7759:2010(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 7759 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee

SC 2, Organic and anodic oxidation coatings on aluminium.

This second edition cancels and replaces the first edition (ISO 7759:1983), which has been technically revised.

iv © ISO 2010 – All rights reserved
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SIST EN ISO 7759:2012
ISO 7759:2010(E)
Introduction

The visual appearance of metallic finishes is important commercially on metals for automotive, architectural,

and other uses where these metals undergo special finishing processes to produce the desired appearance.

For end-products which use such finished metals, it is important that parts placed together have the same

appearance. Specular reflectance is one of the properties measured, but additional measurements are usually

required to identify adequately the appearance of any metal surface. In the method described in this

International Standard, several important aspects of surface appearance are identified and can be measured.

Those surfaces having identical sets of numbers will normally have the same reflectance characteristics and

the same appearance (see References [1], [2] and [3]).
© ISO 2010 – All rights reserved v
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SIST EN ISO 7759:2012
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SIST EN ISO 7759:2012
INTERNATIONAL STANDARD ISO 7759:2010(E)
Anodizing of aluminium and its alloys — Measurement of
reflectance characteristics of aluminium surfaces using a
goniophotometer or an abridged goniophotometer
1 Scope
This International Standard speci
...

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