Introduction | Definitions | Country Nomenclature
Abbreviations and Symbols | Conversion factors

Abbreviations and Symbols

The following abbreviations and symbols have been used in the publication:
C:H	ratio between carbon and hydrogen
cSt	Centistoke
C3H8	chemical symbol for propane
4H10	chemical symbol for butane
°C	degree Celsius
kcal	kilocalorie
kg	Kilogramme
kg/cm2	kilogramme per square centimetre
KJ	kilojoule
kWh	kilowatt-hour
LPG	liquefied petroleum gas
mg/g	milligramme per gramme
MJ	megajoule (106 joules)
m3	cubic metre
NGL	natural gas liquids
RON	research octane number
T	metric ton
TCE	ton of coal equivalent
TJ	terajoule (1012joules)
TOE	ton of oil equivalent
*	estimate by the Statistics Division of the United Nations Secretariat
..	not applicable
...	not available
0	less than 0.5 of the unit specified or nul