8101211 หลอด Tube วัดสารเคมีประเภท Hydrogen Sulphide 2%/a ยี่ห้อ Draeger
Model : 75-1727
Model (old) : 62-1700-H27
Application Range
Standard Measuring Range: 2 to 40 vol.%
Number of Strokes n: 1
Time for Measurement: approx. 1 min
Standard Deviation: ± 5 to 10 %
Color Change: pale blue-> black
Ambient Operating Conditions
Temperature: 0 to 40°C
Absolute Humidity: 3 to 20 mg H2O / L
Reaction Principle
H2S + Cu2+ -> CuS + 2 H+
Cross Sensitivity
No interference by: 5,000 ppm sulfur dioxide
1,000 ppm hydrochloric acid
1,000 ppm ethyl mercaptan