Draeger 8101621 Phosphine 25/a Detector Tubes (10 tests per box)

Application Range:

• Standard Measuring Range: 200 to 10,000 ppm / 25 to 900 ppm
• Number of Strokes n: 1 / 10
• Time for Measurement: approx. 1.5 min / approx. 10 min
• Standard Deviation: ± 10 to 15 %
• Color Change: yellow → dark brown

Ambient Operating Conditions:

• Temperature: 0 to 40 °C
• Absolute Humidity: < 30 mg H2O / L

Reaction Principle:

• PH3 + Au3+ → Au (colloidal)

Cross Sensitivity:

• Arsine and antimony hydride are indicated, but with lower sensitivities.
• Hydrogen sulfide, ammonia, hydrochloric acid and mercaptans are retained in the pre-cleanse layer.