With the development of biofuels programs, the need for easy-to-use methods to ensure the specified 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 analysis is needed.