Application Range
Standard Measuring Range: 0.2 to 5 ppm
Number of Strokes n: 10
Time for Measurement: approx. 5 min
Standard Deviation: ± 5 to 10 %
Color Change: white -> pale brown
Ambient Operating Conditions
Temperature: 10 to 30°C
Absolute Humidity: 3 to 15 mg H2O / L
Reaction Principle
H2S + Pb2+ -> PbS + 2 H+
Cross Sensitivity
Sulfur dioxide and hydrochloric acid in the TLV range do not interfere.