Draeger CH26303 Organic Arsenic Compounds and Arsine Detector Tubes (10 tests per box)

Application Range:

• Standard Measuring Range: Qualitative 0.1 ppm Arsine and 3 mg org. arsenic/m3 are the minimum detectable concentrations.
• Number of Strokes n: 8
• Time for Measurement: max. 3 min
• Standard Deviation: ± 50 %
• Color Change: Yellow → Grey

Ambient Operating Conditions:

• Temperature: 0 to 40 °C
• Absolute Humidity: < 50 mg H2O / L

Reaction Principle:

• a) AsR3 + Zn/HCl → AsH3
• b) AsH3 + Au/Hg-complex → Au (colloidal)

Cross Sensitivity:

• Phosphine and arsine are indicated before the ampoule is broken, but with different sensitivities.

Additional Information:

• Arsine is present if a grey ring appears in the indicating layer after performing 8 pump strokes.
• If there is no indication, the ampoule must be broken and the liquid transferred onto the indicating layer such that it is completely saturated.
• Then an additional eight pump strokes must be performed.