Dräger Tubes For Short Term Measurements: Mercaptan 0.1/a
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 (Mercaptan 0.1/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
|Part no||Dräger Tube||Substance||Measurement Range|
|8103281||Mercaptan 0.1/a||Butyl Mercaptan||0.1 to 100 ppm|
|2-Ethylhexyl acrylate||0.1 to 15 ppm|
|Methyl Mercaptan||0.1 to 15 ppm|
|Standard Measuring Range:||0.1 to 2.5 ppm / 3 to 15 ppm|
|Number of Strokes n:||10|
|Time for Measurement:||approx. 3 min / approx. 40 s|
|Standard Deviation:||± 10 to 15 %|
|Colour Change:||yellow to red|
Ambient Operating Conditions:
|Temperature:||5 to 40 °C|
|Absolute Humidity||2 to 40 mg H2O / L|
2 R-SH + Hg Cl2 ~> Hg(CH3S)2 + 2 HCl HCl + pH-indicator ~> reddish reaction product
Propyl mercaptan and n-butyl-mercaptan are indicated, but with different sensitivities. 4 ppm ethylene, 30 ppm CO, 10 ppm tetrahydrothiophene and 100 ppm hydrogen sulfide do not affect the indication. Hydrogen sulfide changes the pre-layer to black..
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