ISO INTERNATIONAL STANDARD 3497 Third edition 2000-12-15 Metallic coatings Measurement of coating thickness X-ray spectrometric methods RevetementsmetalliquesMesuragedeI'epaisseurdurevetement- Méthodes par spectrométrie de rayons X Reference number ISO 3497:2000(E) ISO @ ISO 2000 ISO 3497:2000(E) Contents Page Foreword.. .iv 1 Scope 2 Terms and definitions . 3 Principle. ..3 4 Apparatus. .7 5 Factors that influence the measurement results. ..10 6 Calibration of instrument. ..14 7 Procedure ..16 8 Measurement uncertainty.. .17 9 Test report... .17 ..18 ISO 2000All rights reserved ili ISO3497:2000(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnica committees. Each member body interested in a subject for which a technical committee has been established has 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 3. 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 International Standard may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 3497 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 3497:1990), which has been technically revised Annex A of this International Standard is for information only. iv @ ISO 2000 - All rights reserved