BS EN 13523-1:2017 – TC:2020 Edition
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Tracked Changes. Coil coated metals. Test methods – Film thickness
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 28 |
This part of the EN 13523 series specifies the procedures for determining the dry-film thickness of an organic coating on a metallic substrate (coil coating). Four appropriate methods are given in this European Standard: a) magnetic induction; b) eddy current; c) micrometer; d) optical. The methods are applicable only to products with smooth and flat substrates but the coating itself may be textured. In that case, for methods a) and b) the average of a series of readings will represent an average of the thickness of the organic coating, while method c) will give the maximum thickness and method d) can provide the minimum, maximum and average thickness. Non-destructive continuous-web methods on measurement of dry-film thickness (see EN ISO 2808) are not dealt with.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 18 | Contents Page |
| 19 | European foreword |
| 21 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 4.1 Method A: Measurement on a magnetic substrate – magnetic induction |
| 22 | 4.2 Method B: Measurement on a non-magnetic substrate – eddy current 4.3 Method C: Measurement on all substrates – micrometer method 4.4 Method D: Measurement on all substrates – optical method 5 Apparatus and materials 6 Sampling 7 Test panels 8 Procedure 8.1 Calibration 8.1.1 General |
| 23 | 8.1.2 Calibration standards 8.2 Scale rating 8.3 Measurement 8.3.1 Ambient conditions 8.3.2 Number of measurements 8.3.3 Method A: Magnetic induction |
| 24 | 8.3.4 Method B: Eddy current 8.3.5 Method C: Micrometer method Figure 1 — Micrometer screw gauge 8.3.6 Method D: Optical method |
| 25 | Figure 2 — Symmetrical cut, conical bore and sloping cut 9 Expression of results 10 Accuracy 11 Test report |
| 26 | Bibliography |
