With the development of biofuels programs, the need for easy-to-use methods to ensure the specified fuel blend ratios grows. The InfraCal Ethanol Blend Analyzer is a fixed-filter infrared analyzer that, unlike FTIR spectrometers, has no moving parts making it portable, rugged and suitable for use in a field environment.Weighing less than 5 lbs., it can be operated from a battery pack or a cigarette lighter adapter cable and include an RS 232 interface for data transmission to a PC. For analysis, the fuel sample is placed directly on the exposed ATR sample window, a "run" button is selected and the result is display in 15 seconds.The InfraCal Ethanol Blend Analyzer is currently in use at terminals and by regulatory agencies worldwide. It is ideal where a single, repetitive ethanol in petrol/gasoline analysis is needed.