Profile: Cryo Service Limited supplies cryogenic and specialty gases to a wide range of science, leisure & industrial sectors. We offer gases in refillable & non-refillable cylinders, gas control equipment, specialty gas mixtures, precision and calibration gases. We also offer a range of engineering services from provision of turnkey installations to consultancy & design work of new projects. Calibration gas standards and pure gases are available in various sizes of refillable cylinders. Mixtures are manufactured, analyzed and certified in our own in-house laboratory, using a gravimetric process. They are individually blended according to a specific recipe and supplied in specially prepared cylinders for maximum stability. We also offer gas generators for on-site production of calibration gas mixtures that are difficult to obtain reliably in cylinder forms. These generators are extensively used for chlorine and chlorine dioxide detector calibration as these are compact, portable & totally self-contained.