Chromic Acid Detection Tubes 0.1/a (0.1 - 0.5 mg/m3)

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Item #: 6728681
MFG: Draeger
UOM: Box of 10
Min Order: 0
Order Qty: Must order in multiples of 1
$129.00
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Product Details

Chromic Acid Detection Tubes 0.1/a (0.1 - 0.5 mg/m3)

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, 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

Chromic Acid Detection Tubes 0.1/a (0.1 - 0.5 mg/m3)

Standard Measuring Range: 0.1 to 0.5 mg/m3
Discoloration compared to color standard
Number of Strokes (n): 40
Time for Measurement: approx. 8 min
Standard Deviation: ±50 %
Color Change: white ─> violet
Temperature: 5 to 40° C
Absolute Humidity: < 20 mg H2O / L
Reaction Principle: a) CrO3 + H2SO4 ──> CrVI
b) CrVI + diphenylcarbazide ──> CrIII + diphenylcarbazone
Cross Sensitivity: Metal chromates such as zine or strontium chromate are indicated with about half the sensitivity.

CrIII compounds do not affect the indication.

Very high chromate concentrations lead to a rapid bleaching of the indication. Measurements should be repeated with less strokes.
Additional Information: After carrying out the required 40 pump strokes the reagent ampoule must be broken, the liquid transferred onto the indicating layer and carefully drawn through it using the pump.

Chromic Acid Detection Tubes 0.1/a (0.1 - 0.5 mg/m3)

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