Drager Detection Tubes - Cyanide 2/a (Pack of 10)
Known worldwide for their cost-effectiveness, Drager’s short-term gas detection tubes are a reliable means of measurement. The Cyanide tubes have a measurement range of 2 to 15 mg/m3 and come in a pack of 10 tubes.
Please note this product has a shelf life of 2 years.
Click here to view more information on the compatible Drager Accuro Gas Detection Pump for short-term detection tubes.
- Hard-to-reach places can be accessed and measured using various compatible accessories
- Excellent for on-the-spot measurements
- 10 seconds to 15 minutes is the time frame for readings and is totally dependent on the tube type
- Suitable applications include pre-entry checks, confined space entry, variations in concentration levels and also contamination of breathing areas are amongst a number of potential of applications
|Standard Measuring Range:||2 to 15 mg/m3|
|Number of Strokes n:||6 (+2)|
|Time for Measurement:||approx. 2 min|
|Standard Deviation:||± 20 to 30 %|
|Color Change:||yellow --> red|
|Ambient Operating Conditions|
|Temperature:||0 to 30 °C|
|Absolute Humidity:||< 20 mg H2O / L|
|a) 2 KCN + H2SO4 --> 2 HCN + K2SO4
b) 2 HCN + HgCl2 --> 2 HCI + Hg(CN)2
c) HCI + methyl red --> red reaction product
|Free hydrogen cyanide is indicated already before breaking the ampoule. Acid gases are indicated with different sensitivities. A certain portion of the cyanide can have reacted with the CO2 in the air through hydrolysis. It is impossible to measure cyanide in the presence of phosphine.|
|After carrying out the 10 strokes the reagent ampoule must be broken, the liquid transferred onto the white separating layer and carefully drawn through with two strokes in cyanide free air using the pump. The indicating layer must not become moist.|