AmpacFlexiblesSpeciPAKSP6-801EZ-5004.5MilclearsaranpolyesterheatsealablestanduppouchwithtearnotchesandE-ZZip?reclosablezipper.Resealablezipperisdurableandwithstandsseveralopenings.Thispouchwillnotdelaminatebecauseofextendedcontactwithchemicals,suchasalkalis,formaldehyde,mostacids,organicsolvents,greasesandoils.Thestand-upSpeciPAKisconvenientforspecimencollectionandstorage.ThisSpeciPAKisheatsealableandbothboilableandmicrow***able.SpeciPAKiscompatiblewithmostconditi***inthelab.Film:CLEARSARANPOLYESTERFILMFeatures:20MMZipperSize(Inches):6x9x1.563CasePack:500MVTR:ASTMF-1249g/.24hrs.0.1OXYGEN:ASTMD-3985cc/.24hrs.0.388)