ASTM RR:C24-1056 PDF Download

ASTM RR:C24-1056 is a test method that focuses on determining the color stability of building construction sealants through laboratory accelerated weathering procedures. The standard aims to establish a precision statement for Test Method C1501 by conducting an interlaboratory study involving eight different laboratories.

In this study, four samples were tested, and the targeted value for completion of the exposures was set at a Delta E of 6.0. Delta E is a metric used to measure the color difference between two samples, with a higher value indicating a greater difference in color.

By conducting this interlaboratory study, the standard seeks to assess the consistency and accuracy of Test Method C1501 across different laboratories. The results from this study will help establish a precision statement for the test method, providing guidance on the expected level of precision and repeatability of color stability measurements for building construction sealants.