
Gastec 211M 硫化物检测管(2~300 ppm)
制造商: Gastec Model: 211M - 联系
Indicator: 2 ~ 300 ppm
Measuring Range: 2 ~ 300 ppm
Sampling Time: 2 minute
Colour Change: White → Brown
Reaction Principle: S2- + Pb(CH3COO)2 → PbS
Nr. of tests: 10
Measuring Range | 2 to 300 ppm |
Sampling Time | 2 minutes |
Detecting Limit | 0.5 ppm |
Colour Change | White → Brown |
Reaction Principle | S2- + Pb(CH3COO)2 → PbS |
Shelf Life | 3 Years |
Corrections for temperature & humidity | Unnecessary |
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Changes colour by itself to |
Cl- | ≧ 15000 ppm | + | No |
CrO42- | ≧ 50 ppm | ![]() |
Yellow |
CO32- | ≧ 500 ppm | + | No |
SO32- | ≧ 200 ppm | ![]() |
No |
S2O32- | ≧ 100 ppm | + | No |
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL
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Liquid detector tube
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* Adjustment for pH is required when measuring with liquid detector tubes.
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