Phosphine Detection Tubes 50/a (15 - 3000 ppm)

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Item #: CH21201
MFG: Draeger

UOM: Box of 10

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Phosphine Detection Tubes 50/a (15 - 3000 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 vapors 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
Standard Measuring Range: 50 to 1,000 ppm
Number of strokes n: 3
Time for Measurement: approx. 2 min
Standard Deviation: ± 10 to 15 %
Color Change: yellow ──> brown black
Temperature: 0 to 50 °C
Absolute Humidity: < 40 mg H2O / L
Reaction Principle: PH3 + Au3+ ──> Au (colloidal)
Cross Sensitivity: Arsine and antimony hydride are indicated, but with different sensitivities.
Hydrogen sulfide, mercaptans, ammonia, carbon monoxide, sulfur dioxide and hydrochloric acid in the TLV range do not interfere.
Extension of the Measuring Range: Using n = 10, multiply the reading by 0.3; the range of measurement is 15 to 300 ppm.