Ethanol mixtures are used in the calibration of portable Breath Alcohol analysers and engine interlock systems. Our Experis range of ethanol mixtures are manufactured to the highest standards and a compatible with all of the major equipment manufacturers. The most commonly purchased ethanol concentrations used are 260ppm, 130ppm and 192ppm of ethanol in nitrogen, with others being available upon request. These can be supplied in either a 34 or 110 litre canister.