"“Since 2003, there has been tremendous growth in solar energy systems technology, along with new developments in materials science related to solar energy, windows technology and thermal energy management films,” says Daryl Myers, an ASTM member who is retired after 37 years…"

"The standard establishes uniform criteria for measurement procedures, equipment and reporting of results with respect to modern measurement equipment. ASTM E903 will be used by manufacturers of glass, coatings, films and optical components of solar energy systems elements to assess the reliability, durability and performance of these components in order to optimize the entire materials system performance."