DIN EN ISO 6976:2005 天燃?xì)?熱值、密度和相對密度及化合物沃泊指數(shù)的計(jì)算
Natural gas - Calculation of calorific values, density, relative density and Wobbe index from composition (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and Corrigendum 3:1999); English version of DIN EN ISO 6976