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.