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DRÄGER GAS DETECTION | 42
Dräger TWA Measurements
DIFFUSION (PASSIVE SAMPLING) TUBES
Get on-site measurements of 8-hour exposures with the Dräger Diffusion Tubes. This gas
and vapor measurement technique provides a quick, simple, and on-site means to determine
employee exposures.
Unlike Short-Term detector tubes that require a pump for operation, Dräger Diffusion Tubes rely
on natural movement of the gases and vapors to enter the tube and cause a color change. Simply
read the indication on the graduated scale (ppm x hours) and divide by the amount of hours the
Dräger Diffusion Tube has been in use for a TWA measurement. No waiting, no analysis fees, no
laboratory services, no turn-around time; just on the spot measurement. The Dräger Tube Holder
allows you to place the Dräger Diffusion Tube in the breathing zone of the people being
monitored or in the suspected areas.
OR D E R INFOR M ATION
DrägerTube
®
Range in Absolute Units Part No.
Acetic Acid 10/a-D 10 - 200 ppm x h 81 01 071
Ammonia 20/a-D 20 - 1,500 ppm x h 81 01 301
Butadiene 10/a-D 10 - 300 ppm x h 81 01 161
Carbon Dioxide 500/a-D 500 - 20,000 ppm x h 81 01 381
Carbon Dioxide 1%/a-D 1 - 30 Vol.% x h 81 01 051
Carbon Monoxide 50/a-D 50 - 600 ppm x h 67 33 191
Ethanol 1000/a-D 1,000 - 25,000 ppm x h 81 01 151
Hydrochloric Acid 10/a-D 10 - 200 ppm x h 67 33 111
Hydrocyanic Acid 20/a-D 20 - 200 ppm x h 67 33 221
Hydrogen Sulfide 10/a-D 10 - 300 ppm x h 67 33 091
Nitrogen Dioxide 10/a-D 10 - 200 ppm x h 81 01 111
Perchloroethylene 200/a-D 200 - 1,500 ppm x h 81 01 401
Sulfur Dioxide 5/a-D 5 - 150 ppm x h 81 01 091
Toluene 100/a-D 100 - 3,000 ppm x h 81 01 421
Trichloroethylene 200/a-D 200 - 1,000 ppm x h 81 01 441
Diffusion Tube Holder (Pkg 3) 67 33 014
BIO-CHECK F BADGES
The Bio-Check F detects formaldehyde in the range of 0.02 to 0.7 ppm without mechanical or
electronic devices. An enzyme reaction changes the color of the indication layer and is evaluated
by a color comparison chart that is included with the badge. The determination of indoor air
exposure levels can be accomplished in only two hours. The Bio-Check is small enough to be
worn on a person’s lapel, or set in a room of concern for measurement of formaldehyde at these
very low levels.
DRÄGER SOFTWARE ORDER IN FOR M ATIO N
Bio-Check F Badge 64 00 235
Diffusion (Passive Sampling) Tubes
Bio-Check F Badges
ST-9379-2007
ST-9380-2007