Model 12D - Hydrogen Cyanide Dositube, 1 - 200 ppm, 10/box

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Use 12D Gastec dosimeter tubes to measure the concentration of Hydrogen Cyanide gas in the workplace and other enclosed air spaces. No pump required! Just snap off the pre-scored end and position the dositube in a specific location or clip it to a shirt collar or pocket using the optional Dositube Holder. The length-of-stain color change, forming over the next several hours, can be read directly off the scale printed on the side of the tube--as easy as reading a ther mometer. Divide the reading by the hours of exposure to get a time-weighted average (TWA) concentration of Hydrogen Cyanide gas in parts-per-million (ppm).

Dosimeter tubes require no pumps, paper charts, secondary operations, or lab analyses--save time and money!

  • Easy to use
  • No special expertise needed
  • Instructions included
  • Each tube precisely calibrated and ready to use
  • No additonal pumps or equipment required
  • Approximate shelf life, 2 years
  • Tubes ship factory-direct for freshest product possible

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