A:Product Introduction: DSHD-11132 Liquid Petroleum Products Hydrocarbon Tester is designed according the national standard of People’s Republic of China GB/11132. It is a kind of professional instrument determining percentage of aromatic hydrocarbon, olefin and saturated hydrocarbon in petroleum fraction. Its operation steps is to make the main hydrocarbon of liquid petroleum products shown on the silica gel adsorption column with fluorescent indicator. Then calculate its volume percentage. This will be regarded as the quality measurement index of engine fuel, aviation fuel and other fuel oils. B: Main technical specifications and parameters: 1. Relative humidity:≤85% 2. Ambient temperature: (5～35)℃ 3. Electric agitator:independently controlled for each way 4. Power supply:AC220V±5%50Hz 5. Illuminating lamp:1220mm in length,power is 40W 6. Air supply:Nitrogen cylinder （or air compressor,compressed air bottle） 7. Pressure regulating range of reducing valve:(0～400)kPa 8. Ultraviolet light source pipe: 1220mm in length,wavelength is 365mm±5nm