Drager Detection Tubes - Nitric Acid 1/a (Pack of 10)
Drager’s short-term gas detection tubes are known worldwide for their reliability and cost-effectiveness. These particular tubes are for nitric acid (1/a) and have a measurement range of 1 to 50 ppm.
They have a shelf life of 2 years and come in a pack of 10 tubes.
Short-term detection tubes require the use of the Drager Accuro Gas Detection Pump. Click here to buy this product.
- Designed for short-term, on-the-spot measurement
- Can take between 10 seconds to 15 minutes to gather a reading
- Applications may include concentration fluctuations in the workplace, measurement of contaminants in breathing zone, and confined spaces
- Can be used as pre-entry checks
|Standard Measuring Range:||5 to 50 / 1 to 15 ppm.|
|Number of Strokes n:||10 / 20|
|Time for Measurement:||approx. 2 min / approx. 4 min|
|Standard Deviation:||± 10 to 15 %|
|Color Change:||blue --> yellow|
|Ambient Operating Conditions|
|Temperature:||5 to 40 °C|
|Absolute Humidity:||3 to 15 mg H2O / L|
|HNO3 + bromophenol blue --> yellow reaction product|
|Hydrogen sulfide and nitrogen dioxide in the TLV range do not interfere, however, 50 ppm nitrogen dioxide gives an indication similar to 3 ppm nitric acid. It is impossible to measure nitric acid in the presence of other mineral acids. Chlorine discolors the indication layer grey, and this makes it difficult to evaluate the nitric acid indication. If chlorine is present in the TLV range, this leads to slightly higher nitric acid indications.|