GB/T 17781-1999

GB/Z 18718-2002 Energy saving directives for heat treatment GB/T 15914-1995 Monitoring and testing method for energy saving of steam heating equipments GB/T 15911-1995 Monitoring and testing method for energy saving of electroheat device in industry GB/T 15945-1995 Quality of electric energy supply--Permissible deviation of frequency for power system GB/T 11790-1996 General principles for low-temperature insulation technique of equipments and pipes GB/T 16618-1996 General principles for thermal insulation technique of industrial furnaces GB/T 16667-1996 Monitoring and testing method for energy saving of electrical welding installation GB/T 16665-1996 Monitoring and testing method for energy saving of air compressor unit and air distribution system