This standard specifies the methods for calculating the high calorific value, low calorific value, density, relative density, high Wobbe index and low Wobbe index of natural gas, natural gas substitutes and other gaseous fuels when the gas molar composition is known. Specifies the method for calculating the physical parameters of gas mixtures under common reference conditions. The mole fraction is by definition the normalized result, which can be done by the method provided in ISO 6974 1 and ISO 6974 2 .
GB/T 11062-2020 Referenced Document
GB/T 11062-2020 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition
ISO 6974-1 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition; Technical Corrigendum 1
ISO 6974-2 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations
GB/T 11062-2020 history
2020GB/T 11062-2020 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition
2014GB/T 11062-2014 Natural gas.Calculation of calorific values, density, relative density and Wobbe index
1998GB/T 11062-1998 Natural gas--Calculation of calorific values, density, relative density and Wobbe index from composition