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

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Item #: CH21201
MFG: Draeger
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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 vapours can be detected and measured, e.g.: Determining and measuring concentration peaks, Measuring personal exposure in the inhalation area, Detecting leaks in pipelines, gas installations etc., and Air analysis in sewers, shafts and confined spaces.

Contains 10 tubes

Standard Measuring Range50 to 1,000 ppm
Number of strokes n:3
Time for Measurementapprox. 2 min.
Standard Deviation± 10 to 15 %
Color Changeyellow ──> brown black
Temperature0 to 50 °C
Absolute Humidity<40 mg H2O / L
Reaction PrinciplePH3 + Au^3+ ──> Au (colloidal)
Cross SensitivityArsine 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
Extension of the Measuring
Using n=10, multiply the reading by 0.3;
the range of measurement is 15 to 300 ppm