SIST EN ISO 2360:2004
(Main)Non-conductive coatings on non-magnetic electrically conductive basis materials - Measurement of coating thickness - Amplitude-sensitive eddy current method (ISO 2360:2003)
Non-conductive coatings on non-magnetic electrically conductive basis materials - Measurement of coating thickness - Amplitude-sensitive eddy current method (ISO 2360:2003)
ISO 2360:2003 describes a method for non-destructive measurements of the thickness of non-conductive coatings on non-magnetic, electrically conductive (generally metallic) basis materials, using amplitude-sensitive eddy current instruments.
The method described can also be used to measure non-magnetic metallic coatings on non-conductive basis materials and is particularly applicable to measurements of the thickness of most oxide coatings produced by anodizing, but is not applicable to all conversion coatings, some of which are too thin to be measured by this method.
Although theoretically, the method can be used for measurements of the thickness of coatings on magnetic basis materials, its use for this application is not recommended.
Nichtleitende Überzüge auf nichtmagnetischen metallischen Grundwerkstoffen - Messen der Schichtdicke - Wirbelstromverfahren (ISO 2360:2003)
In dieser Internationalen Norm wird ein Verfahren für zerstörungsfreie Messungen der Dicke nicht leitender Überzüge auf nichtmagnetischen, elektrisch leitenden (in der Regel metallischen) Grundwerkstoffen unter Anwendung amplitudensensitiver Wirbelstrommessgeräte festgelegt.
ANMERKUNG Dieses Verfahren kann auch für Messungen von nichtmagnetischen metallischen Überzügen auf nicht leitenden Grundwerkstoffen eingesetzt werden.
Das Verfahren ist besonders für Messungen der Dicke der meisten anodisch erzeugten Oxidschutzschichten geeignet, jedoch nicht für alle Konversionsschichten, die teilweise zu dünn sind, um nach diesem Verfahren gemessen werden zu können (siehe Abschnitt 6).
Obwohl das Verfahren theoretisch auch auf Messungen der Dicke von Überzügen magnetischer Grundwerkstoffe angewendet werden kann, wird es für diesen Zweck nicht empfohlen. In diesen Fällen ist das in ISO 2178 festgelegte Magnetverfahren anzuwenden.
Revetements non conducteurs sur matériaux de base non magnétiques conducteurs de l'électricité - Mesurage de l'épaisseur de revetement - Méthode par courants de Foucault sensible aux variations d'amplitude (ISO 2360:2003)
L'ISO 2360:2003 décrit une méthode de mesure non destructive de l'épaisseur des revêtements non conducteurs sur des matériaux de base (généralement métalliques) non magnétiques, conducteurs de l'électricité, au moyen d'instruments utilisant les courants de Foucault et sensibles aux variations d'amplitude.
Cette méthode peut également être utilisée pour mesurer des revêtements métalliques non magnétiques sur des matériaux de base non conducteurs, et elle est applicable notamment au mesurage de l'épaisseur de la plupart des revêtements d'oxydes produits par anodisation, mais elle ne s'applique pas à toutes les couches de conversion, certaines d'entre elles étant trop minces pour être mesurées par cette méthode.
Bien qu'en théorie la méthode puisse être utilisée pour les mesurages de l'épaisseur des revêtements sur des matériaux de base magnétiques, son utilisation pour cette application n'est pas recommandée.
Neprevodne prevleke na nemagnetnih električno prevodnih osnovnih materialih - Merjenje debeline prevleke - Metoda vrtinčnih tokov (ISO 2360:2003)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 2360:2004
01-junij-2004
1DGRPHãþD
SIST EN ISO 2360:1999
1HSUHYRGQHSUHYOHNHQDQHPDJQHWQLKHOHNWULþQRSUHYRGQLKRVQRYQLKPDWHULDOLK
0HUMHQMHGHEHOLQHSUHYOHNH0HWRGDYUWLQþQLKWRNRY ,62
Non-conductive coatings on non-magnetic electrically conductive basis materials -
Measurement of coating thickness - Amplitude-sensitive eddy current method (ISO
2360:2003)
Nichtleitende Überzüge auf nichtmagnetischen metallischen Grundwerkstoffen - Messen
der Schichtdicke - Wirbelstromverfahren (ISO 2360:2003)
Revetements non conducteurs sur matériaux de base non magnétiques conducteurs de
l'électricité - Mesurage de l'épaisseur de revetement - Méthode par courants de Foucault
sensible aux variations d'amplitude (ISO 2360:2003)
Ta slovenski standard je istoveten z: EN ISO 2360:2003
ICS:
17.040.20 Lastnosti površin Properties of surfaces
25.220.20 Površinska obdelava Surface treatment
SIST EN ISO 2360:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 2360:2004
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SIST EN ISO 2360:2004
EUROPEAN STANDARD
EN ISO 2360
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2003
ICS 25.220.20 Supersedes EN ISO 2360:1995
English version
Non-conductive coatings on non-magnetic electrically
conductive basis materials - Measurement of coating thickness -
Amplitude-sensitive eddy current method (ISO 2360:2003)
Revêtements non conducteurs sur matériaux de base non Nichtleitende Überzüge auf nichtmagnetischen
magnétiques conducteurs de l'électricité - Mesurage de metallischen Grundwerkstoffen - Messen der Schichtdicke
l'épaisseur de revêtement - Méthode par courants de - Wirbelstromverfahren (ISO 2360:2003)
Foucault sensible aux variations d'amplitude (ISO
2360:2003)
This European Standard was approved by CEN on 27 October 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2360:2003 E
worldwide for CEN national Members.
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SIST EN ISO 2360:2004
EN ISO 2360:2003 (E)
CORRECTED 2003-12-17
Foreword
This document (EN ISO 2360:2003) 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", 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 May 2004, and conflicting national standards
shall be withdrawn at the latest by May 2004.
This document supersedes EN ISO 2360:1995.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 2360:2003 has been approved by CEN as EN ISO 2360:2003 without any
modifications.
2
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SIST EN ISO 2360:2004
INTERNATIONAL ISO
STANDARD 2360
Third edition
2003-11-15
Non-conductive coatings on
non-magnetic electrically conductive
basis materials — Measurement of
coating thickness — Amplitude-sensitive
eddy current method
Revêtements non conducteurs sur matériaux de base non magnétiques
conducteurs de l'électricité — Mesurage de l'épaisseur de
revêtement — Méthode par courants de Foucault sensible aux
variations d'amplitude
Reference number
ISO 2360:2003(E)
©
ISO 2003
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SIST EN ISO 2360:2004
ISO 2360:2003(E)
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ii © ISO 2003 — All rights reserved
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SIST EN ISO 2360:2004
ISO 2360:2003(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Principle. 1
3 Apparatus. 1
4 Sampling. 1
5 Factors affecting measurement uncertainty . 2
5.1 Coating thickness. 2
5.2 Electrical properties of the basis materials. 2
5.3 Basis metal thickness. 2
5.4 Edge effects. 2
5.5 Surface curvature. 2
5.6 Surface roughness. 3
5.7 Lift-off effect. 3
5.8 Probe pressure. 3
5.9 Probe tilt. 3
5.10 Temperature effects. 3
5.11 Intermediate coatings. 3
6 Procedure. 4
6.1 Calibration of instruments . 4
6.2 Determination. 5
7 Expression of results. 5
8 Measurement uncertainty. 6
9 Test report. 6
Annex A (informative) Eddy current generation in a metallic conductor . 7
Annex B (normative) Test for edge effect . 10
Bibliography . 11
© ISO 2003 — All rights reserved iii
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SIST EN ISO 2360:2004
ISO 2360:2003(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 2360 was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings,
Subcommittee SC 2, Test methods.
This third edition cancels and replaces the second edition (ISO 2360:1982), which has been technically
revised.
iv © ISO 2003 — All rights reserved
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SIST EN ISO 2360:2004
INTERNATIONAL STANDARD ISO 2360:2003(E)
Non-conductive coatings on non-magnetic electrically
conductive basis materials — Measurement of coating
thickness — Amplitude-sensitive eddy current method
1 Scope
This International Standard describes a method for non-destructive measurements of the thickness of non-
conductive coatings on non-magnetic, electrically conductive (generally metallic) basis materials, using
amplitude-sensitive eddy current instruments.
NOTE This method can also be used to measure non-magnetic metallic coatings on non-conductive basis materials.
The method is particularly applicable to measurements of the thickness of most oxide coatings produced by
anodizing, but is not applicable to all conversion coatings, some of which are too thin to be measured by this
method (see Clause 6).
Although theoretically, the method can be used for measurements of the thickness of coatings on magnetic
basis materials, its use for this application is not recommended. In such cases, the magnetic method specified
in ISO 2178 should be used.
2 Principle
An eddy current probe (or integrated probe/instrument) is placed on the surface of the coating(s) to be
measured, and the thickness is read from the instrument's readout.
3 Apparatus
3.1 Probe, containing an eddy current generator and detector linked to a system capable of measuring and
displaying the changes in amplitude, normally as a direct readout of coating thickness. The system may also
be able to measure phase changes.
NOTE 1 The probe and measuring system/display may be integrated into a single instrument.
NOTE 2 Factors affecting measurement accuracy are discussed in Clause 5.
4 Sampling
Sampling depends on the specific application and coating to be tested. The area, location and number of test
specimens shall be agreed between interested parties and shall be included in the test report (see Clause 9).
© ISO 2003 — All rights reserved 1
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SIST EN ISO 2360:2004
ISO 2360:2003(E)
5 Factors affecting measurement uncertainty
5.1 Coating thickness
A measurement uncertainty is inherent in the method. For thin coatings, this measurement uncertainty (in
absolute terms) is constant, independent of the coating thickness and, for a single measurement, is at least
0,5 µm. For coatings thicker than 25 µm, the uncertainty becomes relative to the thickness and is
approximately a constant fraction of that thickness.
For measuring coating thicknesses of 5 µm or less, the average of several measurements shall be taken.
It may not be possible to obtain the measurement uncertainty specified in Clause 8 when measuring coatings
of less than 3 µm in thickness.
5.2 Electrical properties of the basis materials
Measurements using eddy current instruments can be affected by the electrical conductivity of the basis metal,
which is a function of the composition and heat treatment of the material. The influence of electrical
conductivity on the measurement varies considerably with the make and type of instrument.
5.3 Basis metal thickness
For each instrument there is a critical minimum basis metal thickness above which measurements are not
affected by an increase in thickness. Since this thickness depends on both the eddy current generation
frequency of the probe system and the electrical properties of the basis material its value should be
determined experimentally, unless otherwise specified by the manufacturer.
An explanation of Eddy current generation and the calculation of the required minimum basis material
thickness, d , is given in Annex A.
min
However, in the absence of any other information, the required minimum basis material thickness, d , can
min
be estimated from the equation:
d = 2,5 δ
min 0
where δ is the standard penetration depth of the basis material (see A.1).
0
5.4 Edge effects
Eddy current instruments can be sensitive to abrupt changes in surface contour of test specimen. Therefore
measurements made too near to an edge or corner may not be valid unless the instrument has been
specifically calibrated for such measurements (see 6.2.4 and Annex B).
NOTE When compared with the phase-sensitive method of ISO 21968, the amplitude-sensitive eddy current
instruments can be substa
...
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