1) NG/CNG/PNG/LNG Generator 2) ISO9001:2008, CE 3)Environmental friendly CHP 4)Low consumption,low noise (silent ... .14. Standards and Certifications: ISO 9001, ISO 8528, ISO 3046, CE, UL, CSA, EPA. 15. Factory test: all gensets are tested ... with European configuration. MiracleGen NG/CNG/LNG/PNG generator with CE