Gastec 4HH 快速硫化氢测量探测管H2S(0.1~4.0%)

Indicator: 0.1 to 2.0%
Measuring Range: 
+ 0.1 to 2.0%, Number of Pump Strokes 1
+ 2.0 to 4.0%, Number of Pump Strokes 1/2
Sampling Time:  45 seconds per pump stroke
Colour Change: Pale Blue → Blackish Brown
Reaction Principle: H2S + CuSO4 → CuS + H2SO4
Coefficient of Variation: 10% (for 0.1 to 0.6 %), 5% (for 0.6 to 2 %)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Manual tubes

Performance
Measuring Range
0.1 to 2.0% 2.0 to 4.0%
Number of Pump Strokes
1 1/2
Correction Factor
1 2
Sampling Time 45 seconds per pump stroke
Detecting Limit 0.01% (n=1)
Colour Change Pale Blue → Blackish Brown
Reaction Principle H2S + CuSO4 → CuS + H2SO4
Coefficient of Variation 10% (for 0.1 to 0.6 %), 5% (for 0.6 to 2 %)
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
Ammonia   Two layers
(Dark brown & dark blue)
Dark blue
sulphur dioxide 0.5% No
Mercaptans 1 % + No
Calibration gas generation High pressure gas cylinder method
TLV-TWA TLV-STEL Explosive range
1 ppm 5 ppm 4.0 to 44%

 

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