This European Standard specifies the method of test for determining the resistance of paints and varnishes to the effects of heat or cold within the limits of - 50 °C to 200 °C. The test procedure assesses the resistance of paint coatings, varnishes or related products to changes of gloss, colour, blistering, cracking and/or detachment from the substrate as a result of exposure to elevated or sub-ambient temperature. The procedure is applicable to products intended for use in aerospace applications.