Compound Vol%
forNA
LEL
Vol%
forEN
LEL
Linearity
Curve/Table
CalGas NA
Span
Value
EN
Span
Value
MethylAmylKetone(MAK) 1.1 1.1 6 0.6%Propane 51% 51%
MethylCellosolve 1.8 1.8 6 0.6%Propane 60% 60%
MethylChloride 8.1 7.6 6 0.6%Propane 48% 51%
MethylChloroform(1,1,1-
Trichloromethane)
0.1 n.a. 6 0.6%Propane 85% n.a.
Methylcyclohexane 1.2 1.0 1 2.5%Methane 33% 40%
MethyleneChloride 13.0 13.0 1 2.5%Methane 68% 68%
MethyleneFluoride(R-32) 12.7 12.7 6 0.6%Propane 13% 13%
MethylEthylKetone(MEK) 1.4 1.5 1 2.5%Methane 72% 67%
MethylFormate 4.5 5.0 4 0.6%Propane 29% 26%
MethylIsobutylCarbinol
(MIBC)
1.0 1.14 2 0.6%Propane 25% 22%
MethylIsobutylKetone
(MIBK)
1.2 1.2 6 0.6%Propane 54% 54%
MethylMercaptan 3.9 4.1 8 0.1%Propane 17% 16%
MethylMethacrylate 1.7 1.7 6 0.6%Propane 72% 72%
MethylPropylKetone
(MPK)
1.5 1.5 6 0.6%Propane 54% 54%
Methyltert-butylEther
(MTBE)
1.6 1.5 2 0.6%Propane 29% 31%
MonomethylAmine 4.9 4.2 2 0.6%Propane 33% 39%
Morpholine 1.4 1.4 6 0.6%Propane 59% 59%
Naptha,VM&P 1.2 n.a. 6 0.6%Propane 41% n.a.
NitroMethane 7.3 7.3 8 0.1%Propane 45% 45%
NitroEthane 3.4 3.4 1 2.5%Methane 85% 85%
OpteonXL41(R-454b) 11.3 n.a. 3 0.6%Propane 20% n.a.
Pentane 1.5 1.1 5 0.6%Propane 33% 45%
n-Propanol 2.2 2.1 2 0.6%Propane 36% 38%
Propionaldehyde
(Propanal)
2.6 2.0 6 0.6%Propane 69% n.a.
PropylAcetate 1.7 1.7 6 0.6%Propane 41% 41%
PropylBromide 3.8 3.4 2 0.6%Propane 23% 26%
Propyleneimine 1.32 n.a. 6 0.6%Propane 72% n.a.
PropyleneGlycolMethyl
Ether(PGME)
1.8 1.6 6 0.6%Propane 47% 53%
US Ultima X5000 Gas Monitor 90
9 Appendix: Calibration Guide for Additional Gases