Gas Sampling Bags
Gas sampling bags are suitable for whole-air sampling and can be used to sample volatile organic compounds (VOCs) and permanent gases at concentrations from ppb to ppm.
Gas samping bags for sale: Foil, PVF, FEP gas sampling bags.
MOQ: 1 CARTON.
Gas Sampling Bags for Sale
1. Aluminum Foil Composite Membrane
Made of aluminum foil composite film, it is good in gas tightness, with lightweight and easy to carry and use.
Multi layer foil gas sampling bag is chemically stable and can store general industrial gases for long time.
Gas sample bags can be used for percent hydrogen (H2), oxygen (O2), nitrogen (N2), methane (CH4), carbon monoxide (CO), carbon dioxide (CO2), industrial gases, petrochemical gases, environmental gases, greenhouse gases.
2. FEP gas sampling bags
FEP’s chemical resistance and corrosion resistance is better in fluoropolymers, polyperfluoroethylene propylene FEP membrane adsorption, gas permeability is lower, FEP is more suitable for high-precision ppm and ppb level analysis of the sampling, which can ensure the analytical accuracy and stability. It can collect and save all kinds of strong corrosive, high chemical activity of gas and liquid samples.
3. PVF/ Tedlar gas sampling bags
PVF membrane of gas bag sampling has excellent chemical resistance, corrosion resistance, low adsorption. Tedlar gas sampling bag is used for high-precision PPM level analytical sampling, can collect and save a variety of corrosive gases, liquid samples. The heat resistance temperature is 150℃-170℃.
About the stability of the membrane material for tedlar bags for gas sampling, Teflon, Tedlar bag sampling material is recognized as acid and alkali corrosion-resistant materials, their physical and chemical properties are more stable, then from the membrane material, these two materials made of sampling bags background value is the lowest.
For liquid collection needs, we also have wired sampling bags and water sampling bag.
Feature of Gas Sampling Bags
Gas sampling bags are suitable for many applications including industrial hygiene, landfill/methane, ambient air, indoor air and stationary source testing. They are much less expensive than sampling canisters and solvent or thermal desorption tubes, making them an excellent alternative supplement.
Instructions for Use
◆ Inflatable pressure: inflatable pressure does not exceed 3KPa, intuitive observation for the gas bag fully bulging, but with a finger pressure and not taut.
◆ Use temperature: PTFE interface -60℃-＋150℃; plug valve interface -20℃-＋80℃.
◆ Storage and use: Keep away from open flame and high temperature, avoid puncture by sharp objects.
◆ Replacement: When filling standard gas or sampling, it should be cleaned with high purity nitrogen and replaced several times with pre-filled gas.
◆ Sampling: Highly elastic silicone rubber sampling pad for needle sampling.
If reused, replace it with high purity nitrogen gas and then with the proposed filling gas.
For high-precision sampling and analysis, should first remove the influence of the background within.
To clear the background you can fill with high-purity nitrogen, placed in the oven heated to 60 ~ 80 ℃ insulation for 10 minutes, empty the nitrogen, repeat the replacement cleaning.
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