Gastec 7L 快速膦检测管 PH3(0.15~5ppm)

Indicator: 0.3 to 5 ppm
Measuring Range: 
+ 0.15 to 0.3 ppm, Number of Pump Strokes 10
+0.3 to 5 ppm, Number of Pump Strokes 5
Sampling Time: 1 minute per pump stroke
Colour Change: Pale yellow → Purple
Reaction Principle: PH3 + Gold- compound → Colloidal gold 
Coefficient of Variation: 10% (for 0.3 to 1 ppm), 5% (for 1 to 5 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
0.15 to 0.3 ppm 0.3 to 5 ppm
Number of Pump Strokes
10 5
Correction Factor
1/2 1
Sampling Time 1 minute per pump stroke
Detecting Limit 0.04 ppm (n = 10)
Colour Change Pale yellow → Purple
Reaction Principle PH3 + Gold- compound → Colloidal gold
Coefficient of Variation 10% (for 0.3 to 1 ppm), 5% (for 1 to 5 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Unnecessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Arsine   + Purple
Germane   + Purple
Hydrogen selenide   + Purple
Hydrogen sulphide   + Purple
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
0.3 ppm 1 ppm  

 

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