90 • Appendix C: Interference Information
SC-04
Appendix C: Interference Information
ESR-A13D-HCN, HCN Detection
Gas
Chemical
Formula
Concentration
Indication
Value
Acetone
C
3
H
6
O
5000 ppm
1.0 ppm
Acetylene
C
2
H
2
5 ppm
11.2 ppm
Ammonia
NH
3
38.6 ppm
0.2 ppm
Carbon Dioxide
CO
2
20.0 vol%
0.2 ppm
Carbon Monoxide
CO
100 ppm
0.3 ppm
Chlorine
Cl
2
0.2 ppm
0.2 ppm
Ethane
C
2
H
6
1.6 vol%
0.0 ppm
Ethanol
C
2
H
5
OH
8333 ppm
-0.8 ppm
*1
Hydrogen
H
2
500 ppm
1.1 ppm
Hydrogen Sulfide
H
2
S
25.0 ppm
0.2 ppm
Isobutane
i-C
4
H
10
0.72 vol%
12.3 ppm
Isopropyl Alcohol
C
3
H
8
O
5000 ppm
1.8 ppm
*1
Methane
CH
4
5.0 vol%
0.0 ppm
Methyl Ethyl Ketone
C
4
H
8
O
5000 ppm
0.6 ppm
Methyl Methacrylate
C
5
H
8
O
2
4250 ppm
0.3 ppm
n-Hexane
n-C
6
H
14
3000 ppm
0.0 ppm
Nitrogen Dioxide
NO
2
6.1 ppm
-28.9 ppm
*1
Nitrogen Monoxide
NO
5.0 ppm
-12.7 ppm
*1
Ozone
O
3
0.45 ppm
-0.2 ppm
Phosphine
PH
3
0.48 ppm
4.0 ppm
Propane
C
3
H
8
0.88 vol%
0.1 ppm
Propylene
C
3
H
6
0.7 vol%
34.6 ppm
Sulfur Dioxide
SO
2
30.0 ppm
0.2 ppm
*1
The indicated value may fluctuate when exposed to this gas.