NorLab, the Specialty Gas Division of Norco, Inc., has been producing and distributing calibration mixtures and pure specialty gases in refillable and non-refillable cylinders since the late 1970s. We offer a complete line of products, including pure gases to levels of 99.9999% purity, multi-component hydrocarbon mixtures, environmental, industrial hygiene, medical and special application mixes as well as compatible gas control equipment.