Test conditions
9.1 Temperature and humidity
Tests are normally performed at a standard laboratory temperature as defined in ISO 23529, although elevated or subnormal temperatures can be used. เท the latter case, the test temperature shall be selected from the list in ISO 23529.
With materials for which the results are known to be sensitive to humidity, the test shall be carried out under
standard laboratory conditions (temperature and humidity) as defined in ISO 23529.
NOTE An influence of humidity has been observed with polyurethane rubbers and other rubbers containing hydrophilic fillers.