Micom offers test services to ASTM F1515 – Standard Practice for Measuring Light Stability of Resilient Flooring by Color Change – as part of its UV testing services. This test method requires the use of Type BH three-tier racks apparatus (either inclined or vertical). This practice covers specific procedures and test conditions based on practices ASTM G151, ASTM G155, ASTM D2565 and ASTM D2244; all using a xenon arc light source. Furthermore, ASTM F1515 covers the preparation of test specimens, the test conditions and the evaluation of test results.
Use and factors to be considered:
Polymers can have their mechanical, electrical and optical properties significantly altered when exposed to light behind window glass. This method is intended to quantify the amount of color change in flooring products when subjected to accelerated aging to light for a specific amount of time.
When offering different colors of the same material; different colors should be tested. Indeed, pigments used to color plastics are different in chemical composition
Typical Experimental parameters:
ASTM F1515 precisely defines the following test parameters. It is therefore important when you require testing to insure they are all followed:
- The lamp filters (inner and outer)
- The xenon arc light source intensity (irradiance level)
- % relative humidity
- Cabinet temperature interior temperature
- The Black Panel Temperature (BPT)
- Each product to be tested in triplicate
The delta E calculation is based on the color L, a, b measurements. These measurements can be done per ASTM D2244 – Standard Test Method for Calculations of Color Differences.
Should you have any question, please feel free to contact us.
Other test methods related to ASTM F1515:
We also invite you to download our PDF on the true color measurement: What is the difference between the “true” color of an item and its “perceived” color (by the human eye)?
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