Item #: 6733081
MFG: Draeger
Price: $98.70
$98.70

Formaldehyde Detection Tubes 0.2/a (0.2 - 5 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 vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.

Contains 10 tubes

Standard Measuring Range0.5 to 5 / 0.2 to 2.5 ppm
Number of Strokes (n)10 / 20
Time for Measurementapprox. 1.5 min. / approx. 3 min.
Standard Deviation±20 to 30 %
Colour Changewhite ─> pink
Temperature10 to 40° C
Absolute Humidity3 to 15 mg H2O / L
Reaction PrincipleHCHO + C6H4(CH3)2 + H2SO4>
quinoid reaction products
Cross SensitivityStyrene, 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.
Extension of the Measuring
Range
The measuring range can be extended
in conjunction with the activation tube
(Order No. 81 01 141). The following
information applies to the n=20 stroke
scale:
Pump Strokes Scale Divided By Range_________
40 2 0.1 to 1.25 ppm
80 4 0.05 to 0.63 ppm
100 5 0.04 to 0.5 ppm
Related Items
Short Term Draeger Tubes Formaldehyde 2/a - 2 - 40 PPM

Price: $107.00
Accuro Pump Kit with Soft Sided Case

Price: $591.00
Hot Pack Tube Holder 8316130

Price: $275.00