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Graduated glass tube designed to indicate presence of specific gas; filled with color-indicating chemical reagent; length of color change is proportional to gas concentration; used with hand pump to draw sample into tube.
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The GASCO Calibration Gas - Air is a calibration gas cylinder containing air for calibrating gas detection instruments. This 16 liter aluminum cylinder contains 99.9995% pure air certified to NIST traceable standards. The cylinder has a CGA-590 outlet with a brass valve and is refillable. This calibration gas is suitable for calibrating and bump testing gas detectors used for monitoring oxygen levels. With a 2 year shelf life, this cylinder from GASCO provides high purity air from a reliable supplier. The 16N067 model contains 16 liters of gas at a pressure of 1800 psi.
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