
ABOUT THIS DOCUMENT
Information for general use
Rev. M / 73023639
13
GasLab Q2
Short form
Description
EN/IEC 60079-
14
Standard on explosive atmospheres
F
Farad = 1/ Daraf = S−1 (electrotechnical units)
FE
Functional earth / functional ground
ft
⋅
lb / ftlb
Pound-foot 1 ft
⋅
lb = 1 ftlb = 1.355817948 Nm
GF
Gas family
gr
Grains 1gr = 64.79891 mg
Hi/HiM/HiV
Net heating value/Lower heating value/Inferior calorific value
(molar/based on mass/based on volume)
Hs/HsM/HsV
Gross heating value/Higher heating value/Superior calorific value
(molar/based on mass/based on volume)
Hz
Frequency
iC
4
H
10
Isobutane (i-butane)
iC
5
H
12
Isopentane (i-pentane)
ID
Identification number (enSuite), for example gas cylinder number
IECEx:
(IECEx SYSTEM) International explosion-protection (Ex) rating
in or
′′
length in inch (1
′′
) 1 in = 1
′′
= 0.0254 m = 25.4 mm
IP
Internet protocol / Protection class
IR
Infrared
ISO
International Organization for Standardization
K
Temperature (Kelvin) = T
K
= 5⁄9 (T
F
+ 459.67) = T
C
+ 273.15 (
∆
1K =
∆
1°C)
KFM Live
Internal coefficients and filters
kg
Kilogram 1kg = 2.204623lb.
l
Liter 1l = 0.001m³ = 0.0353 cft= 0.0353 cu ft
lb
Pound 1lb = 0.4535923kg
LED
Light emitting diode
log
Logbook
m
M (Mm)
Molar mass (of the mixture)
m or mm
Length in SI unit (meter) 1 m = 1000 mm = 3.280840 ft = 39.37008 in (or
′′
)
m³
Cubic meter 1m³= 1000 l = 35.3147 cft = 35.3147 cu ft
mg
Milligram 1 mg = 0.0154323584 gr
MJ
Megajoule 1MJ = 948.45138280892 BTU