AccuSpan (by AG Gases & Equipment Ltd) is a UK-based independent speciality gases company. We supply quality high-spec precision calibration gas mixtures for various applications, including environmental monitoring, gas detection, laser cutting and laboratory analysis. AccuSpan products are used worldwide within the oil, gas and petrochemical industries. Manufacturing and blending process integrity is our absolute priority. We rigorously conform and adhere to the ISO 9001:2015 standard to ensure product quality and consistency. All our mixtures are supplied with a certificate of composition, including the concentration of components, accuracy, pressure, gas volume, storage information, shelf life and international traceability. AccuSpan provides our customers with high-precision calibration gas mixtures, high-purity gases, and pressure control equipment. Mixtures are produced gravimetrically. The balances used in the weighing process are accurate to +/- 0.01g allowing direct measurement of cylinder content during mixing. We eliminate errors associated with indirect manometric mixing techniques and inaccuracies due to temperature and gas compressibility. The weights used to calibrate the balances are traceable to NPL standards. High-purity raw materials, supplied under a Certificate of Conformity, are used to ensure the final gravimetric filling accuracy. From our Stoke-on-Trent headquarters, our expert team have extensive experience in calibration gas mixtures, regulatory equipment, and gas generators, including Chlorine, Chlorine Dioxide, and Ozone gas. We pride ourselves on our excellent customer service and distribute worldwide with streamlined efficiency. Our Express Service provides high-quality precision gas mixtures with a super-fast turnaround for urgent requests.