Gastec 70L 快速硫醇测量探测管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

Detail

Catalog

Manual

manual tube

Performance
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.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Acid gases   + Red
Hydrogen sulphide   No No
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
Butyl mercaptan 1.6 1/2,1,2 or 4 0.16 to 12.8 ppm
tert-Butyl mercaptan 1.0 0.1 to 8 ppm
Ethyl mercaptan 1.0 0.1 to 8 ppm
Methyl mercaptan 1.0 0.1 to 8 ppm
Propyl mercaptan 1.2 0.12 to 9.6 ppm
Calibration gas generation Permeation tube method
TLV-TWA TLV-STEL Explosive range
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