[scope of application] The towel leakage tester is used to test consists of coating materials, inner absorption layer, anti-seepage bottom membrane, etc., and provides women's menstruation (sanitary napkins) through special packaging models. Non-menstrual (sanitary pads) and baby diapers for a specific test solution, the amount of infiltration is an important parameter to describe the sanitary permeability performance. To some extent, it shows the instantaneous absorption ability of sanitary napkins in the face of the "turbulent flood". [meet a criterion] GB / T 28004-2011 diapers (piece, pad) [Appendix A] Measurement of permeability GB / T 8939-2008 sanitary napkin (including sanitary pads) [Appendix A] Determination of infiltration amount