Determination of thickness, gloss and colorimetric parameters of a paint coating
Presentation for participants
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G25PC |
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References of test methods |
ISO 2808 ASTM B659 ASTM D1186 ISO 2813 ASTM D523 |
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References of test methods for which the ILC can indirectly provide an assessment of performance |
ASTM D1005 ISO 2178 ASTM B499 ASTM D7091 ISO 2360 ISO 3497 |
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These may be superseded standards, which some of the reference standards may have replaced, or EN or ASTM or ISO standards that are close but not exactly equivalent to the reference standards. |
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Frequency |
Each year |
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Main characteristics |
t (thickness of coating), G20, G60, G85 (Gloss coefficients at 20°, 60°, 85°), L*, a*, b* (Colorimetric parameters) |
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Determination of the assigned values (“true values” for each characteristic) |
By statistical computation of the totality of the results with possible selection on competence criteria (accreditation, validation by a reference body, quantity of tests performed in the year), test to detect possible collusion, merging of results not obtained in reproductibility conditions, suppression of technically unvalid results. |
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Type of statistical computation |
For numerical results, the statistical computation will provide an assigned value with its attached uncertainty, values of standard deviations for repeatability and reproductibility, limits of alerts for bias and repeatability of the participant, indiviual values for uncertainty of results of participants. |
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Number of products submitted to tests |
1 |
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Number of samples per participation |
6 |
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Max number of operators per participation |
10 (For this ILC, the type of test and sample size allow to provide results determined by several different operators and by several different methods) |
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Product submitted to tests |
Paint coated steel |
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Type of samples |
Plates |
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Approximate dimensions of samples |
150x100x1 mm |
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Specific preparation to be performed by the participant |
None (other than possible necessity to polish the test specimens or to adapt their dimensions to the equipment of the participant) |
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Special notice for this ILC |
Results obtained by several methods may be provided |
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Time schedule: |
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Opening date of registrations |
20/12/2024 |
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Registration deadline |
15/03/2025 |
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Date of shipment of samples |
30/05/2025 |
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Start of the tests |
03/06/2025 |
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Deadline for carrying out the tests and providing the results |
25/08/2025 |
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Date of delivery of reports |
07/10/2025 |
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Note: After the deadline, registrations are still possible. Contact us at ilc@compalab.org for more information. |
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Price (€) |
375 |
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Price if online payment (€) |
300 |
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Approximate weight (kg) |
2 |
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