Riken Keiki GX-3R User Manual

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100 %LEL = ppm conversion list
The following table shows the standard conversion for 100 %LEL and ppm:
Standard IEC ISO
Methane CH4
50,000 ppm 44,000 ppm 44,000 ppm
Isobutane i-C4H10
18,000 ppm 13,000 ppm 15,000 ppm
Hydrogen H2
40,000 ppm 40,000 ppm 40,000 ppm
Methanol CH3OH
55,000 ppm 60,000 ppm 60,000 ppm
Acetylene C2H2
15,000 ppm 23000 ppm 23000 ppm
Ethylene C2H4
27,000 ppm 23,000 ppm 24,000 ppm
Ethane C2H6
30,000 ppm 24,000 ppm 24,000 ppm
Ethanol C2H5OH
33,000 ppm 31,000 ppm 31,000 ppm
Propylene C3H6
20,000 ppm 20,000 ppm 18,000 ppm
Acetone C3H6O
21,500 ppm 25,000 ppm 25,000 ppm
Propane C3H8
20,000 ppm 17,000 ppm 17,000 ppm
Butadiene C4H6
11,000 ppm 14,000 ppm 14,000 ppm
Cyclopentane C5H10
14,000 ppm 14,000 ppm 14,000 ppm
Benzene C6H6
12,000 ppm 12,000 ppm 12,000 ppm
N-hexane n-C6H14
12,000 ppm 10,000 ppm 10,000 ppm
Toluene C7H8
12,000 ppm 10,000 ppm 10,000 ppm
N-heptane n-C7H16
11,000 ppm 8,500 ppm 8,000 ppm
Xylene C8H10
10,000 ppm 10,000 ppm 10,000 ppm
N-nonane n-C9H20
7,000 ppm 7,000 ppm 7,000 ppm
Ethyl acetate EtAc
21,000 ppm 20,000 ppm 20,000 ppm
Isopropyl alcohol IPA
20,000 ppm 20,000 ppm 20,000 ppm
Methyl ethyl ketone MEK
18,000 ppm 15,000 ppm 15,000 ppm
Methyl methacrylate MMA
17,000 ppm 17,000 ppm 17,000 ppm
Dimethyl ether DME
30,000 ppm 27,000 ppm 27,000 ppm
Methyl isobutyl
ketone
MIBK
12,000 ppm 12,000 ppm 12,000 ppm
Tetrahydrofuran THF
20,000 ppm 15,000 ppm 15,000 ppm

Riken Keiki GX-3R Specifications

General

Brand	Riken Keiki
Model	GX-3R
Category	Monitor
Language	English