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Gastec 7LA 快速膦检测管 PH3

Indicator: 
Measuring Range: 
+ 0.05~0.1ppm, Number of Pump Strokes 10
+ 0.1~1.5 ppm, Number of Pump Strokes 5
+ 1.5~2.5ppm, Number of Pump Strokes 3
+ 2.5~9.8ppm, Number of Pump Strokes 1
Sampling Time:  1.5 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: PH3 +3HgCl2 → P(HgCl)3 + 3HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (for 0.1 to 0.4 ppm), 5% (for 0.4 to 1.5 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Manual tube

Performance
Measuring Range
0.05 to
0.1 ppm
0.1 to
1.5 ppm
1.5 to
2.5 ppm
2.5 to
9.8 ppm
Number of Pump Strokes
10 5 3 1
Correction Factor
1/2 1 1.7 6.5
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 0.02 ppm (n = 10)
Colour Change Yellow → Red
Reaction Principle PH3 +3HgCl2 → P(HgCl)3 + 3HCl
HCl + Base → Chloride
Coefficient of Variation 10% (for 0.1 to 0.4 ppm), 5% (for 0.4 to 1.5 ppm)
Shelf Life 2 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 1/10 time + Red
Hydrogen chloride   No No
Diborane   No No
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