Abstract / scope
The method described is based on storing the test specimens in an atmosphere of (70 ± 1) °C and (62 ± 1) % relative humidity (psychrometric temperature difference of (10 ± 0,3) °C), until moisture absorption by the specimen has reached at least 95 % of its equilibrium level. It is applicable to polyamides and copolyamides in grades containing fillers and other additives, but not to grades containing more than 2 % (m/m) extractables. The equilibrium moisture content attained is close to the equilibrium moisture content obtained in standard atmosphere 23/50.