ASTM D 1148 - 13 Standard Test Method for Rubber Deterioration - Discoloration from Ultraviolet (UV) or UV/Visible Radiation and Heat Exposure of Light-Colored Surfaces

Current edition approved Jan. 1, 2013. Published February 2013. Originally approved in 1951. Last previous edition approved in 2007 as D1148 – 07a. — 4 p.
This test method covers techniques to evaluate the surface discoloration of white or light-colored vulcanized rubber that may occur when subjected to UV or UV/visible exposure from specified sources under controlled conditions of relative humidity, or moisture, and temperature.
This test method also describes how to qualitatively evaluate the degree of discoloration produced under such conditions.
The term “discoloration” applies to a color change of the rubber sample, as distinguished from staining (see Note 1), that refers to a color change of a metal finish in contact with or adjacent to the rubber specimen.