Protect Your People Graph of Permeation Rate Permeation Rate Chemical /min / cm 2 Test 2.0 Permeating Volume for 180M “Breakthrou Permeated FIRST gh” 1.5 “Breakthroug 300 M At h” “Breakthroug 1.0 120M h” 0.5 60 120 180 240 300 360 420 480 Time