Drager Short Term Detection Tubes - Formaldehyde 0.2/a (Pack of 10)

These tubes are designed for spot-measurements and must be used with the Drager Accuro Gas Detection Pump. Buy now from Frontline Safety.

£106.48 inc VAT

£88.73

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Product description

These Formaldehyde short-term gas detection tubes from Drager have a measurement range of 0.2 to 5 ppm (0.2/a). Other substances detected included

Acetaldehyde, Buten-2-al, n-Butyraldehyde, Crontonaldehyde, 1,3-Dioxolan, Formaldehyde, Furfural and Vinyl Acetate.

The tubes have a shelf life of 2 years and come in a pack of 10 tubes.

Hard-to-reach and on-the-spot measurements can be carried out using the tubes, pump and accessories
Obtain measurements within 10 seconds to 15 minutes (depending on the type of tube)
Pre-entry checks, confined space entry, variations in concentration levels in the workplace and contamination of breathing zones are possible applications which may use tubes

Specification

Application Range
Standard Measuring Range:	0.5 to 5 / 0.2 to 2.5 ppm
Number of Strokes n:	10 / 20
Time for Measurement:	approx. 1.5 min / approx. 3 min
Standard Deviation:	± 20 to 30 %
Color Change:	white --> pink

Ambient Operating Conditions
Temperature:	10 to 40 °C
Absolute Humidity:	3 to 15 mg/ 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.

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