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Passive Dosimeter-Tube
Long-Term (time-weighted) measurement detector tubes

Passive Dosimeter-Tube  
The dosimeter tube method utilizes the principle of gas diffusion. Using the holder (Dosi-Tube Holder No.710-3 pcs. in package) attach the tube to the breathing zone of the worker. (i.e.,lapel) and measure individual exposure Time-Weighted-Average (TWA). Or it can be installed in work areas to act as an area monitor for TWA measurement. The chemical reagent and diffusion barrier are positioned in the detector tube to give consistent gas diffusion uptake by the tube and clear color change. No pumps, paper charts, secondary operations or laboratory analysis is required. For more details, please see attached tube list.
Detector Tubes
For Substances in Solution

Detector Tubes  
This tube measures the Sulfide Ion (S2- ), Chloride Ion (CI- ), Mercury (Hg),Iron Ion (Fe2+), Copper Ion (Cu2+) , Zinc (Zn) , Nickel (Ni), Chromium (VI) Ion (Cr6+), Ozone (O3) dissolved in water. Place the sample water in a container. Brake off both ends of the detector tube and immerse in the sample water is drawn into the tube by capillary action.

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Tel: +66(0)2944-4679, Fax: +66(0)2944-4920, Email: sales@braveengineering.com, Website: http://www.braveengineering.com