Both the COLIPA and ISO 24443 test methods for the in vitro determination of UVA protection are based on measurement of UV transmission through a thin film of sunscreen. Atlas SUNTEST CPS+ is the most reliable UV test chamber for these in vitro UVA SPF test methods.
SUNTEST CPS+ was originally developed for accelerated aging of plastics and other materials. It has been optimized for testing pharmaceuticals and cosmetics and offers a fully compliant test spectrum.
