CH21201 หลอด Tube วัดสารเคมีประเภท Phosphine 50/a ยี่ห้อ Draeger
Model : 75-2216
Model (old) : 62-2100-P16
Application Range
Standard Measuring Range: 50 to 1,000 ppm
Number of Strokes n: 3
Time for Measurement: approx. 2 min
Standard Deviation: ± 10 to 15 %
Color Change: yellow -> brown black
Ambient Operating Conditions
Temperature: 0 to 50 °C
Absolute Humidity: < 40 mg H2O / L
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.
Extension of the Measuring Range
Using n = 10, multiply the reading by 0.3; the range of measurement is 15 to 300 ppm.