CH29801 หลอด Tube วัดสารเคมีประเภท Hydrogen Sulphide 5/b ยี่ห้อ Draeger
Model : 75-1724
Model (old) : 62-1700-H24
Application Range
Standard Measuring Range: 5 to 60 ppm
Number of Strokes n: 10
Time for Measurement: approx. 4 min
Standard Deviation: ± 5 to 10 %
Color Change: white -> brown
Ambient Operating Conditions
Temperature: 0 to 60°C
Absolute Humidity: < 40 mg H2O / L
Reaction Principle
H2S + Pb2+ -> PbS + 2 H+
Cross Sensitivity
Sulfur dioxide can cause plus errors of up to 50%. Sulfur dioxide alone does not discolor the indicating layer.
Extension of the Measuring Range
Using n = 1, multiply the reading by 10; the measuring range will be 50 to 600 ppm.