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Gas Detection / Gas Tables / Cross references

Sulphur dioxide cross references

 
Gas Concentration Response
Sulphur dioxide (SO2)
CO 50 ppm 0,3 ppm
CO 300 ppm <3 ppm
CO2 1,5 % 0 ppm
CS2 20 ppm 0,3 ppm
CS2 2000 ppm 14 ppm
H2S 15 ppm 0 ppm
H2S 250 ppm 0,3 ppm
H2SO4 saturated 0 ppm
NH3 100 ppm 0 ppm
NO 25 ppm <= -2 ppm*
NO2 5 ppm about -5 ppm
HCl 0.5 ppm 0 ppm
ClO2 10 ppm <= -2 ppm*
HF 70 ppm 0 ppm
Acetylene 10 ppm 1 ppm
Acetylene 100 ppm 10 ppm
Toluene 100 ppm 0 ppm
Isobutylene 100 ppm 0.4 ppm
1,3-Butadiene 5 ppm 4.3 ppm"
Styrene 200 ppm >40 ppm

Note: All data above are valid for sensors by RAE Systems.

*More negative than -2 ppm

"Cannot be removed by activated carbon because of SO2 loss

 

 


Phosphine cross references

 
Gas Concentration Response
Phosphine (PH3)
Arsine 150 ppb 0 ppb
Arsine 2000 ppb 1200 ppb*
Silane 1000 ppb 900 ppb
Diborane 300 ppb 105 ppb
Germane 600 ppb 510 ppb
NH3 100 ppm 0 ppm
NO 100 ppm 0 ppm
SO2 5 ppm 1 ppm
CO 1000 ppm 1 ppm
CO2 50 000 ppm 0 ppm
H2 1000 ppm 30 ppm
H2S 25 ppm 5 ppm
HCN 10 ppm 0,6 ppm
HCl 10 ppm 0,2 ppm
Methane 50 000 ppm 0 ppm
Ethylene 100 ppm 1,8 ppm
Isobutylene 250 ppm 0 ppm
Hexane, n- 1500 ppm 0 ppm
Benzene 100 ppm 0 ppm
Toluene 100 ppm 0 ppm
Ethylene oxide 10 ppm 0 ppm
CF2Cl2 100 ppm 0 ppm

Note: All data above are valid for sensors by RAE Systems.

*Response after 9 minutes exposure. CF = 1,7 average, tested in range 500 to 3000 ppb AsH3.

 

 


Nitrogen dioxide cross references

 
Gas Concentration Response
Nitrogen dioxide (NO2)
NO 25 ppm 2,2 ppm
NH3 50 ppm -0,2 ppm
CO 50 ppm -0,2 ppm
CO 300 ppm 15 ppm
H2S 25 ppm -2,2 ppm
SO2 5 ppm 0 ppm
HCl 10 ppm 0 ppm
Ci2 1 ppm -1 ppm
ClO2 1 ppm -2 ppm
HNO3 1997 ppm 12,1 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Nitric oxide cross references

 
Gas Concentration Response
Nitric oxide (NO)
CO 300 ppm 0 ppm
SO2 5 ppm 0 ppm
H2S 25 ppm 2 - 9 ppm
ClO2 1 ppm -0,2 ppm
NH3 50 ppm 0 ppm
NO2 5 ppm about 0,5 ppm
HCl 10 ppm about 0,5 ppm
HNO3 1997 ppm 13,2 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Hydrogen Fluoride cross references

 
Gas Concentration Response
Hydrogen Fluoride (HF)
Acetic acid 100 ppm yes
SO2 20 ppm 16 ppm
Cl2 1 ppm 0,7 ppm
CO 100 ppm 0 ppm
CO2 5 000 ppm 0 ppm
H2 3 000 ppm < 1 ppm
Alcohols 1 000 ppm 0 ppm
Hydrocarbons % range 0 ppm
HCl 10 ppm 6 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Hydrogen Chloride cross references

 
Gas Concentration Response
Hydrogen chloride (HCl)
Acetic acid 100 ppm yes
SO2 20 ppm 16 ppm
Cl2 1 ppm 0,7 ppm
CO 100 ppm 0 ppm
CO2 5 000 ppm 0 ppm
H2 3 000 ppm < 1 ppm
Alcohols 1 000 ppm 0 ppm
Hydrocarbons % range 0 ppm
HF 6 ppm 10 ppm
HNO3 1997 ppm 10 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Chlorine dioxide cross references

 
Gas Concentration Response
Chlorine dioxide (ClO2)
Cl2 1 ppm 0 ppm*
Cl2 1 ppm 0,4 ppm"
ClF3 1 ppm 1 (theor) ppm
O3 0,1 ppm 0,03 ppm
H2S 10 ppm 0 ppm
H2S 25 ppm -1,1 ppm"
SO2 5 ppm 0 ppm"
CO 1000 ppm 0 ppm
CO 50 ppm 0 ppm"
CO2 5000 ppm 0 ppm
HCl 5 ppm 0 ppm
HF 3 ppm 0 ppm
H2 10 000 ppm 0 ppm
NH3 50 ppm 0 ppm"
PH3 300 ppm 0.3 ppm
AsH3 1 ppm 0.8 ppm
HCN 10 ppm 0 ppm
H2Se 0.1 ppm 0 ppm
NO 25 ppm 0.9 ppm"
NO2 5 ppm 1,5 to 2,3 ppm"
Chloropicrin 100 ppm 0 ppm"
Hydrocarbons % range 0 %
Alcohols 1000 ppm 0 ppm

Note: All data above are valid for sensors by RAE Systems.

*Short exposure of < few minutes of < 100 ppm, with filter

"Onboard filter removed

 

 


Carbon dioxide cross references

Carbon dioxide
Gas Concetration Response
Carbon dioxide (CO2)
CH4 25 000 ppm < 20 ppm
Ethane 10 000 ppm < 20 ppm
Ethylene 13 500 ppm < 20 ppm
Acetylene 12 500 ppm < 20 ppm
Propane 10 000 ppm < 20 ppm
Acetone 10 000 ppm < 20 ppm
Carbon disulphide 10 000 ppm < 20 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Chlorine cross references

Chlorine
Gas Concetration Response
Chlorine (Cl2)
NH3 65 ppm 0 ppm
CO 300 ppm 0 ppm
CO2 10 % 0 ppm
H2S 10 ppm -0.3 ppm
SO2 5 ppm -1.2 ppm
NO 35 ppm < 3 ppm
NO2 5 ppm 0.1 ppm
N2 100 % 0 ppm
H2 1000 ppm 0 ppm
HCN 10 ppm 0 ppm
HCl 20 ppm 0 ppm
Br2 1 ppm 1 ppm
ClO2 0.32 ppm 0.3 ppm
Ethanol 6.6 % 0 ppm
Hydrocarbons % range 0 ppm

Note: All data above are valid for sensors by RAE Systems.

 

 


Hydrogen cyanide cross references

Hydrogen cyanide
Gas Concetration Response
Hydrogen cyanide (HCN)
CO 300 ppm cca 0.5 ppm
H2S 15 ppm see note below
SO2 5 ppm cca 8 ppm
NO 35 ppm cca 3.5 ppm
NO2 5 ppm cca 10 ppm
H2 200 ppm 0 ppm
Ethylene 100 ppm cca 1 ppm

Note: All data above are valid for sensors by RAE Systems. Due to a very high cross-sensitivity to H2S, this sensor is unsuitable for use in atmospheres that contain H2S.

 

 


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