NEN EN ISO 6976 : 2016
Current
The latest, up-to-date edition.
12-01-2013
Defines methods for the calculation of gross calorific value, net calorific value, density, relative density, gross Wobbe index and net Wobbe index of natural gases, natural gas substitutes and other combustible gaseous fuels, when the composition of the gas by mole fraction is known.
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