Draeger Tube, Sulfur Dioxde 20/A 20-2000ppm
Product ID: CH24201
Price: $83.95
Availability: Email for Availability (info@nafeco.com)
 
Order Qty:
   
 
 
 

Draeger Tube - Sulfur Dioxide 20/a
Order No. CH 24 201

Application Range
Standard Measuring Range 20 to 200 ppm
Number of Strokes n: 10
Time for Measurement: approx. 3 minutes
Standard Deviation: ± 10 to 15%
Color Change: brown yellow to white
   
Ambient Operating Conditions
Temperature: 0 to 40° C ~ 32 to 104° F
Absolute Humidity: < 30 mg H2O /L
   
Reaction Principle
SO2 + I2 + 2 H2O → H2SO4 + 2 HI
 
Cross Sensitivity
Hydrogen sulfide is indicated, with the same sensitivity. It is impossible to measure sulfur dioxide in the presence of hydrogen sulfide. Nitrogen dioxide will shorten the reading..
 
Extenstion of the Measuring Range
Using n = 1+3 desorption strokes, multiply the reading by 10; the range of measurement is 200 - 2,000 ppm. The desorption strokes are to be taken in clean air (i.e. free of sulfur dioxide) immediately following the single pump stroke.

View the entire Draeger Tubes & CMS Handbookk