Gas Bag Sampling Equipment

For heated gas bag sampling up to 150°C (300°F), Apex Instruments offers a thermostatically controlled flexible silicone rubber drum heater and thermal blanket (TBE-HEATER). The heater is easily attached with quick acting spring latches and the quilted thermal blanket is attached with snap buttons.

The M180 VacBag Sampler System (SK-M180) takes an integrated gas sample in accordance with the U.S. EPA Method 18, by evacuating the stainless steel airtight container fitted with a gas sampling bag, preventing the gas sample from coming into contact with the sample pump. The TBE Enclosures come standard with clear Lexan® lid, a 1/4" valved female quick connect and a 1/4" male quick connect.

The compact Gas Sampling Pump (TBP-102A) incorporates a Hargraves Miniature Dual Head Pump with a maximum vacuum of 25" Hg and open flow of 6 to 11 lpm. The polyethylene terephthalate (PET) pump is constructed with a silicone valve and neoprene diaphragm. Pumps feature direct read rotameter, nonreversible male and female quick connects, stainless steel fittings and needle valve, a vacuum gauge, timer and folding handle. Add "V" to end of part number for 240 VAC option. Dimensions: HxWxD 6" x 7" x 8.5" (15.2 cm x 17.8 cm x 21.6 cm); Weight: 8 lbs (3.5 kg). Power: 120 VAC/50-60 Hz.

Gas Sampling Bags are the first choice for collecting a variety of gaseous compounds. Gas Sampling bags are referenced for many U.S. EPA Methods including 3,18 and 0040. Bags fabricated from film are inert to most gases, resist gas permeation and can be reused for most applications after proper cleaning. They are flexible and strong, and use of a rigid container ensures a longer life and convenience during transporting. Gas Sampling bags are fabricated from transparent 2ml film or can be special ordered fabricated from opaque black for photosensitive compounds. Custom sizes available upon request.

 Please See Alternative ALTEF and Multi-Layer Foil Gas Sampling Bags Comparison Charts.

Sulfur Compounds

Compound Recommended Gas
Sampling Bag Material		  
  ALTEF Multi-Layer Foil
n-Butyl mercaptan    
tert-Butyl mercaptan    
Carbon Disulfide•    
Carbonyl Sulfide    
Diethyl disulfide    
Diethyl Sulfide•    
Dimethyl disulfide    
Dimethyl Sulfide•    
2, 5-Dimethylthiophene    
Ethyl mercaptan•    
Ethyl methyl Sulfide•    
2-Ethylthiopene    
Hydrogen Sulfide    
Isobutyl mercaptan•    
Isopropyl mercaptan•    
3-Methylthiophene    
Methyl mercaptan•    
n-Propyl mercaptan•    
Tetrahydrothiophene    
Thiophene•    

 

 

 

 

 

 

 

 

 

 

 

 

VOCs

Compound Recommended Gas
Sampling Bag Material		  
  ALTEF Multi-Layer Foil◊
Acetone, Acetonitrile, Acrylonitrile,
Butyl Acetate, Ethyl Acetate,
Methyl Ethyl Ketone, Toluene, p-Xylene		    
Allyl Chloride, Benezine, Bromoethane
Carbon Tetrachloride, Chloroform
Carbon Dioxide, Carbon Monoxide
    
1,2-Dichloroethane, Dichloropropane
Ethylene, Heptane, Hexane, Isooctane
Isopropyl Alcohol, Methane		    
Methylene Chloride, Methy tert-butyl ether
Octane, Percholoethylene, Propylene
Propylene Oxide, Tetrahydrofuran		    
1, 1, 1-Trichloroethane, Trichloroethylene
Vinylidene Chloride		    

     Color Code:
     Red - Not Suitable 
     Dark Green - Recommended
     Ligth Green - Suitable when used as recommended

     • ALTEF bags can be used to sample these sulfur compounds if sample is analyzed within 24 hours.

    ◊ Multip-Layer Foil bags can be used to sample most VOCs but are not recommended for collecting low ppm to  
        high ppb VOCs due to background levels from bag materials.

       ALTEF bags are recommended for most VOCs, if analyzed within 48 hours, and for many sulfer compounds, if
       analyzed within 24 hours.

       Multi-Layer Foil bags are recommended for Methane (CH4), Hydrogen Sulfide (H2S), Carbon Monoxide (CO), 
       and Carbon Dioxide (CO2), if analyzed within 48 hours.

 For information click on links below.

Stainless Steel Enclosures

Drum Heaters

Gas Sampling Bags

Sampling Pumps