Gas type: Natural gas, biogas, CBM etc. Genset is approved by CE, ISO9001, 2008, 14001, 2004, 2007 and ... OHSAS18001 Gas type: Natural gas, biogas, CBM etc.Gas Generator ... particulate matter(impurity <5um)2. Gas calorific value ≥ 5000kca1/1, genset power will reduce when calorific value <5000kca1/1.3. Sulfide ...