Formaldehyde 2/a (2 - 40 ppm)

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Item #: 8101751
MFG: Draeger

UOM: Box of 10

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Formaldehyde 2/a (2 - 40 ppm)

For short-term measurements more than 160 Draeger Tubes are available to measure the so called spot concentrations of specific gases.

A wide range of different gases and vapors can be detected and measured, such as:

  • Determining and measuring concentration peaks
  • Measuring personal exposure in the inhalation area
  • Detecting leaks in pipelines, gas installations etc.
  • Air analysis in sewers, shafts and confined spaces
Standard Measuring Range: 2 to 40 ppm
Number of Strokes (n): 5
Time for Measurement: approx. 30 sec
Standard Deviation: ±20 to 30 %
Color Change: white ─> pink
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.
Additional Information The reagent ampoule must be broken down before carrying out the measurement.