Application Range
Use in Simultaneous CO2
Standard Measuring Range: 0.1 to 4 ppm
Test Volume: 1 L
Flow Rate: 0.2 L / min
Time for Measurement: 5 min
Standard Deviation: ± 15 to 20 %
Color Change: white -> grey violet
Ambient Operating Conditions
Temperature: 0 to 50 °C
Absolute Humidity: max 40 mg H2O / L
Pressure: The tube may only be used for depressurized compressed air
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.
Evaluation
Scale reading = ppm phosphine-
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