"The scope of this SAE performance standard is to define the test method by which the direct solar and visible transmission of safety glazing materials for road vehicles shall be measured. Adherence to this performance standard will facilitate writing@ use and referencing of reports by government@ industry and other organizations. Purpose The purpose of this performance standard is to determine the direct solar and visible and color transmittance of safety glazing materials for road vehicles. Application The performance standard applies to monolithic or laminated@ clear or tinted samples of safety glazing materials. Essentially flat sections of glazing parts may be used in this test as well as flat samples of the same materials. Rationale This document is being written to standardize calculations and communications involving spectral transmission data from safety-glazing materials for road vehicles. This revised document now conforms with the computational convention ""A"" in ISO 13837."