Description
Dräger Tubes For Short Term Measurements: Formaldehyde 2/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 (Formaldehyde 2/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
Application Range:
| Standard Measuring Range: | 2 to 40 ppm |
| Number of Strokes n: | 5 |
| Time for Measurement: | approx. 30 s |
| Standard Deviation: | ± 20 to 30 % |
| Colour Change: | white to pink |
Ambient Operating Conditions:
| Temperature: | 0 to 40 °C |
| Absolute Humidity | 3 to 15 mg H2O / L |
Reaction Principle:
HCHO + C6H4(CH3)2 + H2SO4 ~> quinoid reaction products
Cross Sensitivity:
Styrene, vinyl acetate, acetaldehyde, acrolein, diesel fuel and furfuryl alcohol are indicated with a yellowish brown discoloration. 500 ppm Octane, 5 ppm nitric oxide and 5 ppm nitrogen dioxide have no effect..
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