10.3.1 Condition all absorbent test specimens at room
temperature (21 to 26°C) (70 to 80°F) in a closed vessel with
2.5 cm of water in the bottom. Suspend the specimens in vapor
space without contacting water for 2 days (14 days optional).
At the end of the exposure period, test the specimens for oil
and water absorbency. Record weights before and after this
conditioning.