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Determination of thickness, gloss and colorimetric parameters of a paint coating

Presentation for participants

                       
 
Reference of the ILC: G19PC
References of test methods: ISO 2808  ISO 2813  ISO 7724-1  ISO 7724-2  ISO 7724-3  ISO 11664-4  ISO 11664-6
Frequency: Each year
Time schedule:  
Opening date of registrations Registration deadline Date of shipment of samples Start of the tests Deadline for carrying out the tests and providing the results Date of delivery of reports
15/12/2018 15/03/2019 20/05/2019 01/06/2019 15/07/2019 15/10/2019
Note: After the deadline, registrations are only accepted within the limit of availability of samples
Main characteristics t (thickness of coating), G20, G60, G85 (Gloss coefficients at 20°, 60°, 85°), L, a, b (Colorimetric parameters)
Other characteristics -
   
                   
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.
Type of statistical computation: Results are numerical. For each characteristic selected by the participant, 2 results shall be provided for each sample. The statistical computation will provide an assigned value with its attached uncertainty, values of standard deviations for repeatability, for reproductibility and for inter-sample homogeneity, limits of alerts for bias and repeatability of the participant, indiviual values for uncertainty of results of participants.
Number of samples per participant: 6
Product submitted to tests: Paint coating (on steel)
Type of samples: Plates
Approximate dimensions of samples: 150x100x1 mm
Specific preparation to be performed by the participant:  None (other than possible necessity to adapt dimensions of the test specimen to the equipment of the participant)
                   
Special notice for this ILC: Results obtained by several methods may be provided