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GAS8D Chlorine Passive Dosi-Tube 0.08 – 100ppm
GAS8D Chlorine (Cl2) Gastec Passive Sampling Dosi Tubes (Time Weighted Average Detector Tubes)
The Dosi-Tube System allows an operator to evaluate the level of gas a worker is exposed to over a time period such as a working shift.
The Dosi-Tube is easily clipped into the Dosi-tube holder (GAS710) which is worn on a garment of clothing.
|Measuring Range||0.08 to 100 ppm|
|Sampling Hours||0.5 to 24 hours|
|Detecting Limit||0.1 ppm (10 hours)|
|Colour Change||White Yellow|
|Reaction Principle||Chlorine oxidizes o-toludine for form yellow colour stain.|
|Coefficient of Variation||10% (for 2 to 50 ppm-hr)|
|Shelf Life||Up to 2 years from point of manufacture|
temperature & humidity
|Store the tubes at cool and dark place.|
|Possible coexisting substances and their interferences|
|Substance||Concentration||Interference||Change colour by itself|
|Nitrogen dioxide, Halogens||–||Plus error||Discolour yellow stain|
|Calibration gas generation||Permeation tube method|
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