Application Fields of Teflon FEP gassampling bags Teflon FEP gassampling bags are suitable for concentration analysits of PPM and PPB ranks,and they are widely used in analysis and detection in automobile VOC detection,petroleum and environment industries.They can store carbon monoxide(CO),sulfur dioxide(SO2),Hydorgen sulfide(H2S),benzene and radon mercaptan,hydrocarbon and chlorinated solvent etc. They have good corrosion and oxidation resistance. Operating temperatrue for Teflon FEP:from -30 degrees Celsius to +100 degrees Celsius Technical Parameters: Material of membrane: Teflon membrane Production place of membrane: United States Material of Valve : PP valve Connecting hose of Valve (Valve size 6 to 7mm): 5mm (inner diameter)*7mm (outer diameter), 6mm (inner diameter)*9mm (outer diameter) Manufacturer of finished products: Shanghai Sunrise Instrument Co.,Ltd. Brand: E-Switch