Dräger Tubes For Short Term Measurements: Hydrogen Sulfide 0.2/b
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for (Hydrogen Sulfide 0.2/b).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
|Standard Measuring Range:||0.2 to 6 ppm|
|Number of Strokes n:||1|
|Time for Measurement:||approx. 55 s|
|Standard Deviation:||± 15 to 20 %|
|Colour Change:||yellow to pink|
Ambient Operating Conditions:
|Temperature:||15 to 40 °C|
|Absolute Humidity||max. 20 mg H2O / L|
H2S + HgCl2 ~> HgS + 2 HCl HCL + pH indicator ~> pink reaction product
Up to 1000 ppm, sulfur dioxide has no influence on the reading. Within the range of their TLV, mercaptanes, arsine, phosphine and nitrogen dioxide are also indicated, however, with differing sensitivity. Within its TLV, hydrogen cyanide changes the color of the tire indicating layer to a light orange. The reading of hydrogen sulfide is not affected..
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