Dräger Short Term Detection Tubes - Methyl Bromide 0.5/a (Pack of 10)
8101671
Dräger Tubes For Short Term Measurements: Methyl Bromide 0.5/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 (Methyl Bromide 0.5/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
Application Range:
| Standard Measuring Range: | 5 to 30 / 0.5 to 5 ppm |
| Number of Strokes n: | 2 |
| Time for Measurement: | approx. 2 min / approx. 5 min |
| Standard Deviation: | ± 15 to 20 % |
| Colour Change: | white to blue green |
Ambient Operating Conditions:
| Temperature: | 2 to 40 °C |
| Absolute Humidity | max. 20 mg H2O / L |
Reaction Principle:
a) CH3Br + H2S2O7 ~> HBr b1) HBr + CrVI ~> Br2 b) Br2 + o-tolidine ~> blue green reaction product
Cross Sensitivity:
Vinyl chloride: 2 ppm no reading. Carbon tetrachloride: 2 ppm no reading Perchloroethylene and Trichloroethylene: 5 ppm changes the indicating layer to a light yellow. 1.2-dichloroethylene: 20 ppm result in a reading of approx. 3 ppm. 1.1-dichloroethylene: up to 2 ppm the sensitivity is the same as with methyl bromide.
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