This tube is designed primarily for the following gas and range. Some tubes may be used for additional gases. Please reference the specification sheet for complete details of all compatible gases for this tube.
#504-TWA TWA-Toluene 20-200 ppm
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ATTENTION: Expiration dates on Sensidyne Tubes can vary from 3 months to 1 year at the time of shipping. Zefon International/Cole-Parmer does not have any control over these dates.