Metallic coatings - Measurement of coating thickness - Profilometric method (ISO 4518:2021)

This document specifies a method for the measurement of metal coating thickness by first forming a step between the surface of the coating and the surface of its substrate and then measuring the step height using a profile recording instrument. It covers the instrumentation characteristics and the procedure appropriate to this specific application of profilometric methods.
The method is applicable to the measurement of thicknesses of metal coatings from 0,01 µm to 1 000 µm on flat surfaces and, if appropriate precautions are taken, on cylindrical surfaces. It is highly suitable for the measurement of minute thicknesses but, for thicknesses of less than 0,01 µm, surface flatness and surface smoothness are very critical and, accordingly, the method is not suitable for use down to the lowest level of measurement usual for electronic stylus instruments. The method is suitable for measuring coating thicknesses when preparing coating thickness reference standards.

Metallische Überzüge - Messen der Schichtdicke - Profilometrisches Verfahren (ISO 4518:2021)

Dieses Dokument legt ein Verfahren zur Messung der Schichtdicke von metallischen Überzügen fest, wobei zunächst eine Stufe zwischen der Oberfläche des Überzugs und der Oberfläche seines Grundwerkstoffs gebildet und anschließend deren Höhe mit einem Profilaufzeichnungsgerät gemessen wird. Es behandelt die Eigenschaften der Einrichtung sowie die für die spezifische Anwendung der profilometrischen Verfahren geeignete Durchführung.
Das Verfahren ist für die Schichtdickenmessung von metallischen Überzügen von 0,01 µm bis 1 000 µm auf ebenen Oberflächen und, bei Berücksichtigung geeigneter Maßnahmen, auf zylindrischen Oberflächen anwendbar. Es ist besonders zur Messung kleinster Dicken geeignet, bei Dicken von weniger als 0,01 µm sind die Einflüsse der Ebenheit und Glätte allerdings sehr kritisch. Daher ist das Verfahren nicht für die Anwendung im untersten Messbereich geeignet, der für elektronische Tastschnittgeräte üblich ist. Das Verfahren ist anwendbar bei Schichtdickenmessungen, die als Schichtdicken-Referenzproben vorbereitet werden.

Revêtements métalliques - Mesurage de l'épaisseur de revêtement - Méthode profilométrique (ISO 4518:2021)

Le présent document spécifie une méthode de mesure de l'épaisseur de revêtements métalliques consistant à former tout d'abord un gradin entre la surface du revêtement et la surface de son substrat, puis à mesurer la hauteur de ce gradin à l'aide d'un instrument à enregistreur de profil. Il indique les caractéristiques d'appareillage et le mode opératoire convenant à cette application particulière des méthodes profilométriques.
La méthode est applicable au mesurage de l'épaisseur de revêtements métalliques de 0,01 µm à 1 000 µm sur des surfaces planes et, en prenant les précautions appropriées, sur des surfaces cylindriques. Elle convient particulièrement au mesurage de très faibles épaisseurs; toutefois, pour les épaisseurs inférieures à 0,01 µm, pour lesquelles la planéité et le poli de la surface sont très critiques, il n'est pas approprié d'utiliser cette méthode au niveau minimal de mesurage habituel pour les instruments électroniques à palpeur. Cette méthode convient pour le mesurage des épaisseurs de revêtements lors de la fabrication d'étalons d'épaisseurs.

Kovinske prevleke - Merjenje debeline prevleke - Profilometrijska metoda (ISO 4518:2021)

General Information

Status
Published
Publication Date
27-Apr-2021
Withdrawal Date
30-Oct-2021
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
28-Apr-2021
Completion Date
28-Apr-2021

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SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN ISO 4518:1999
Kovinske prevleke - Merjenje debeline prevleke - Profilometrijska metoda (ISO
4518:2021)
Metallic coatings - Measurement of coating thickness - Profilometric method (ISO
4518:2021)
Metallische Überzüge - Messen der Schichtdicke - Profilometrisches Verfahren (ISO
4518:2021)
Revêtements métalliques - Mesurage de l'épaisseur de revêtement - Méthode
profilométrique (ISO 4518:2021)
Ta slovenski standard je istoveten z: EN ISO 4518:2021
ICS:
25.220.40 Kovinske prevleke Metallic coatings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4518
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 25.220.40 Supersedes EN ISO 4518:1995
English Version
Metallic coatings - Measurement of coating thickness -
Profilometric method (ISO 4518:2021)
Revêtements métalliques - Mesurage de l'épaisseur de Metallische Überzüge - Messen der Schichtdicke -
revêtement - Méthode profilométrique (ISO Profilometrisches Verfahren (ISO 4518:2021)
4518:2021)
This European Standard was approved by CEN on 25 March 2021.

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, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4518:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4518:2021) has been prepared by Technical Committee ISO/TC 107 "Metallic
and other inorganic coatings" in collaboration with Technical Committee CEN/TC 262 “Metallic and
other inorganic coatings, including for corrosion protection and corrosion testing of metals and alloys”
the secretariat of which is held by BSI.
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 October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4518:1995.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 4518:2021 has been approved by CEN as EN ISO 4518:2021 without any modification.

INTERNATIONAL ISO
STANDARD 4518
Second edition
2021-04
Metallic coatings — Measurement of
coating thickness — Profilometric
method
Revêtements métalliques — Mesurage de l'épaisseur de revêtement —
Méthode profilométrique
Reference number
ISO 4518:2021(E)
©
ISO 2021
ISO 4518:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 4518:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Instrumentation — Operational parameters and measurement characteristics .1
5.1 Types of profile recording instruments . 1
5.2 Stylus instruments . 2
5.3 Inductive measuring probes or displacement sensors . 2
5.4 Optical profilometers . 3
6 Factors relating to accuracy . 4
6.1 Profile record . 4
6.2 Vertical magnification (only for instruments with chart recorders) . 4
6.3 Graphical measurements . 4
6.4 Applied force (only for profilometers with stylus) . 4
6.5 Stylus diameter and surface roughness . 4
6.6 Surface roughness . 4
6.7 Vibrations . 5
6.8 Surface curvature . 5
6.9 Cleanliness . 5
6.10 Temperature . 5
6.11 Step configuration . 5
6.12 Datum reference (only for profilometers with stylus) . 5
6.13 Calibration . 5
7 Calibration . 5
8 Measuring procedure . 6
8.1 Preparation of step . 6
8.2 Recording of profiles . 7
8.3 Measurement of thickness . 7
8.4 Measurement accuracy . 7
9 Test report . 7
Bibliography . 8
ISO 4518:2021(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 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 of 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 www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 262, Metallic and other inorganic coatings, including for corrosion protection and corrosion testing of
metals and alloys, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 4518:1980), which has been technically
revised. The main changes compared with the previous edition are as follows:
— optical profilometers such as confocal microscopes or i
...

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