Item Description: Drager Tubes - Carbon Monoxide 0.3%/b - #CH29901
Range is 0.3 to 7 vol.% CO. The capacity of the precleanse layer may not be sufficient for high concentrations of hydrocarbons and halogenated hydrocarbons. If in question, use a carbon pretube (part no. CH24101) in front of the carbon monoxide tube. CO cannot be measured in the presence of high olefin concentrations. Box contains complete instructions.
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