The ASTM D4941-06 (2021) standard describes how to prepare a uniform film of artist tubular paints and Miscellaneous non-flowing pigments using a low viscosity paints applicator. The standard pays particular attention to the determination of transparency and drying time, providing information on how to produce opaque paints samples for accurate Colorimetric measurement and Miscellaneous evaluation. The standard is designed to ensure Reliability of evaluation results by avoiding surface defects in paints samples through consistent film application.