NF ISO 1431-1, T46-019-1 (08/2024)

This document specifies the procedures intended to be used for the determination of the cracking resistance of vulcanized or thermoplastic rubbers, when exposed, under static or dynamic tensile deformation, to air containing a determined concentration of ozone, at a determined temperature and, if necessary, at a determined relative humidity under conditions which exclude the effects of direct light. Visual observation and/or image analysis are used to evaluate crack formation and growth. Changes in physical or chemical properties resulting from exposure can also be determined. The reference method as well as another method for evaluating the ozone concentration are described in ISO 1431-3.
(Automatic translation from French)