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3) Cross Sensitivities:
The following table gives cross sensitivity information for a variety of commonly encountered gases.
Test Gas
Carbon monoxide
Hydrogen Sulphide
Hydrogen
Methane
Carbon dioxide
Sulfur dioxide
Nitric oxide
Nitrogen dioxide
Ammonia
Ethanol
Ethylene
Chlorine
NT-H2S-LI-CD.doc, issue 1, August 2008
Tested
Concentration
(ppm)
200
10
1000
5000
5000
30
10
10
100
100
1000
10
H2S equivalent
reading (ppm)
% cross-sensitivity
<2
10
<15
0
0
<4
-0.2 to 1
-1.4
0
0.2
<1.2
<0.5
<1
100
<1.5
0
0
<14
<10
14
0
0.02
<0.15
<5
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