Gastec 70L Quick-measuring Detector tubes Mercaptans R-SH (0.1-8ppm)

Indicator: 0.5 ~ 4 ppm
Measuring Range:
+ 0.1 ~ 0.2 ppm, Number of Pump Strokes 4
+ 0.2 ~ 0.5 ppm, Number of Pump Strokes 2
+ 0.5 ~ 4 ppm, Number of Pump Strokes 1
+ 4 ~ 8 ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle: RSH + HgCl2 → RSHgCl + HCl, HCl + Base → Chloride
Coefficient of Variation: 10% (for 0.5 to 1 ppm), 5% (for 1 to 4 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Catalog

Manual

manual tube

Measuring Range	0.1 to 0.2 ppm 0.2 to 0.5 ppm 0.5 to 4 ppm 4 to 8 ppm
Number of Pump Strokes	4 2 1 1/2
Correction Factor	0.2 0.4 1 2
Sampling Time	1.5 minutes per pump stroke
Detecting Limit	0.05 ppm (n=4)
Colour Change	Yellow → Red
Reaction Principle	RSH + HgCl2 → RSHgCl + HCl HCl + Base → Chloride
Coefficient of Variation	10% (for 0.5 to 1 ppm), 5% (for 1 to 4 ppm)
Shelf Life	2 Years
Corrections for temperature & humidity	Unnecessary
Store the tubes at cool and dark place.