This standard specifies the terms and definitions, classification and technical requirements of town gas, the calculation method of characteristic indexes, the requirements of characteristic indexes and the test gas of civil gas burning appliances. This standard applies to the classification of various gases used as urban fuels.
GB/T 13611-2006 Referenced Document
GB/T 11062 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition*, 2020-09-29 Update
GB/T 13611-2006 history
2018GB/T 13611-2018 Classification and basic characteristics of city gas
2006GB/T 13611-2006 Classification and essential property of city gas