Ahlstrom Filter Paper 5"x5" 奧斯龍5×5英寸（125×125 mm）濾紙（吸水紙或吸墨紙）
Test purpose: It is often used for the test of rewetting and re-wetting of hydrophilic non-woven fabric (non-woven fabric). It is the designated test consumable for EDANA , such as the performance test of the skin contact layer of diapers.
