Marsap provides the petrospec ea 200 ethanol purity analyzer - a simple, quick and accurate instrument for measuring the contents of ethanol. Add the sample, press a Button and you get a result in minutes. This eliminates the need for more sophisticated methods like gcs and provides both the buyer and the seller of the ethanol with confidence in the product that is being traded. It is portable for field use also, which makes it suitable for use in remote terminals, ethanol-manufacturing plants and even for online use at the blending plants.