Gastec 7 Quick-measuring Detector tubes Phosphine PH3(2.5~100ppm)

Indicator: 5 to 50 ppm
Measuring Range:
+ 2.5 to 5 ppm, Number of Pump Strokes 4
+ 5 to 50 ppm, Number of Pump Strokes 2
+ 50 to 100 ppm, Number of Pump Strokes 1
Sampling Time: 1.5 minutes per pump stroke
Colour Change: White → Pale yellow
Reaction Principle: 2PH3 + 6HgCl2 + 3H2O → Hg3P2 3HgCl23H2O+6HCl
Coefficient of Variation: 10% (for 5 to 10 ppm), 5% (for 10 to 50 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

Measuring Range	2.5 to 5 ppm 5 to 50 ppm 50 to 100 ppm
Number of Pump Strokes	4 2 1
Correction Factor	1/2 1 2
Sampling Time	1.5 minutes per pump stroke
Detecting Limit	0.5 ppm (n = 4)
Colour Change	White → Pale yellow
Reaction Principle	2PH3 + 6HgCl2 + 3H2O → Hg3P2 3HgCl23H2O+6HCl
Coefficient of Variation	10% (for 5 to 10 ppm), 5% (for 10 to 50 ppm)
Shelf Life	3 Years
Corrections for temperature & humidity	Unnecessary
Store the tubes at cool and dark place.