ISO 10216:2017
(Main)Anodizing of aluminium and its alloys — Instrumental determination of image clarity of anodic oxidation coatings — Instrumental method
Anodizing of aluminium and its alloys — Instrumental determination of image clarity of anodic oxidation coatings — Instrumental method
ISO 10216 specifies an instrumental method for determining the image clarity of anodic oxidation coatings on aluminium and its alloys by measuring reflection from the surface with the help of a sliding combed shutter. The test can only be applied to a flat surface which can reflect the image onto the limited combed shutter and photo-receiver. This method can also be used to measure the optical evenness of anodic oxidation coatings on aluminium and its alloys.
Anodisation de l'aluminium et de ses alliages — Détermination de la netteté d'image sur couches anodiques — Méthode instrumentale
General Information
Relations
Buy Standard
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 10216
Third edition
2017-10
Anodizing of aluminium and its
alloys — Instrumental determination
of image clarity of anodic oxidation
coatings — Instrumental method
Anodisation de l'aluminium et de ses alliages — Détermination de la
netteté d'image sur couches anodiques — Méthode instrumentale
Reference number
©
ISO 2017
© ISO 2017, 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 2017 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimen . 4
6.1 Sampling . 4
6.2 Size . 4
6.3 Treatment before measurement . 5
7 Procedure. 5
7.1 Measurement of black glass . 5
7.2 Sensitivity adjustment by test specimen . 5
7.3 Measurement of test specimen . 5
8 Expression of results . 5
8.1 Calculation of image clarity, C . 5
n
8.2 Image clarity . 7
8.3 Image clarity comparison and classification . 7
8.4 Optical evenness, E .7
8.5 Dispersion of light, D .7
9 Test report . 8
Bibliography . 9
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 www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys,
Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium.
This third edition cancels and replaces the second edition (ISO 10216:2010), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the tolerance of the width of the slit has been revised;
— the figures have been revised;
— a combed sliding shutter figure has been added;
— information about the test specimen has been added.
iv © ISO 2017 – All rights reserved
Introduction
Estimation of the image clarity of anodic oxidation coatings on aluminium and its alloys is normally
carried out visually by observing the clearness of an image on the surface. However, the image can be
observed at various angles and be confused with the gloss level of a surface, and while the degree of
image clarity is mainly influenced by the clearness of the coating, it is also affected by image distortion
caused by surface irregularities and the haziness of the coating layer. Standardized methods of
determining image clarity are therefore required.
This document specifies the use of an instrumental method for measuring image clarity using an optical
comb. A related document, ISO 10215, specifies the use of a chart scale also based on an optical comb
together with a lightness scale to rank image clarity.
NOTE This instrumental method provides more accurate measurements of image clarity than visual
evaluation and can be used in cases of dispute.
INTERNATIONAL STANDARD ISO 10216:2017(E)
Anodizing of aluminium and its alloys — Instrumental
determination of image clarity of anodic oxidation coatings
— Instrumental method
1 Scope
This document specifies an instrumental method for determining the image clarity of anodic oxidation
coatings on aluminium and its alloys by measuring reflection from the surface with the help of a sliding
combed shutter.
The test can only be applied to a flat surface which can reflect the image onto the limited combed
shutter and photo-receiver. This method can also be used to measure the optical evenness of anodic
oxidation coatings on aluminium and its alloys.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including a
...
INTERNATIONAL ISO
STANDARD 10216
Third edition
2017-10
Anodizing of aluminium and its
alloys — Instrumental determination
of image clarity of anodic oxidation
coatings — Instrumental method
Anodisation de l'aluminium et de ses alliages — Détermination de la
netteté d'image sur couches anodiques — Méthode instrumentale
Reference number
©
ISO 2017
© ISO 2017, 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 2017 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimen . 4
6.1 Sampling . 4
6.2 Size . 4
6.3 Treatment before measurement . 5
7 Procedure. 5
7.1 Measurement of black glass . 5
7.2 Sensitivity adjustment by test specimen . 5
7.3 Measurement of test specimen . 5
8 Expression of results . 5
8.1 Calculation of image clarity, C . 5
n
8.2 Image clarity . 7
8.3 Image clarity comparison and classification . 7
8.4 Optical evenness, E .7
8.5 Dispersion of light, D .7
9 Test report . 8
Bibliography . 9
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 www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys,
Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium.
This third edition cancels and replaces the second edition (ISO 10216:2010), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the tolerance of the width of the slit has been revised;
— the figures have been revised;
— a combed sliding shutter figure has been added;
— information about the test specimen has been added.
iv © ISO 2017 – All rights reserved
Introduction
Estimation of the image clarity of anodic oxidation coatings on aluminium and its alloys is normally
carried out visually by observing the clearness of an image on the surface. However, the image can be
observed at various angles and be confused with the gloss level of a surface, and while the degree of
image clarity is mainly influenced by the clearness of the coating, it is also affected by image distortion
caused by surface irregularities and the haziness of the coating layer. Standardized methods of
determining image clarity are therefore required.
This document specifies the use of an instrumental method for measuring image clarity using an optical
comb. A related document, ISO 10215, specifies the use of a chart scale also based on an optical comb
together with a lightness scale to rank image clarity.
NOTE This instrumental method provides more accurate measurements of image clarity than visual
evaluation and can be used in cases of dispute.
INTERNATIONAL STANDARD ISO 10216:2017(E)
Anodizing of aluminium and its alloys — Instrumental
determination of image clarity of anodic oxidation coatings
— Instrumental method
1 Scope
This document specifies an instrumental method for determining the image clarity of anodic oxidation
coatings on aluminium and its alloys by measuring reflection from the surface with the help of a sliding
combed shutter.
The test can only be applied to a flat surface which can reflect the image onto the limited combed
shutter and photo-receiver. This method can also be used to measure the optical evenness of anodic
oxidation coatings on aluminium and its alloys.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including a
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.