Gastec 211LL Ion Sulphide S2- detector tube (0.5 ~ 20 ppm)
Manufacturer: Gastec Model: 211LL - Request a Quotation
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Indicator: 0.5 ~ 20 ppm
Measuring Range: 0.5 ~ 20 ppm
Sampling Time: 3 minute
Colour Change: White → Brown
Reaction Principle: S2- + Pb(CH3COO)2 → PbS
Nr. of tests: 10
Measuring Range | 0.5 to 20 ppm |
Sampling Time | 3 minutes |
Detecting Limit | 0.2 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 | Change colour by itself to |
SO32- | ≦ 20 ppm | No | No ( ≦ 1%) |
Cl- | ≦ 100 ppm | No | No ( ≦ 5%) |
Cr6+ | ≧ 0.2 ppm | Yellow ( ≧ 1ppm) | |
CO32- | ≦ 500 ppm | No | No ( ≦ 1%) |
S2O32- | ≦ 20 ppm | No | No ( ≦ 1%) |
I- | ≦ 200 ppm | No | Yellow ( ≧ 3000ppm) |
SO42- | ≦ 100 ppm | No | No( ≦ 1%) |
PO43- | ≦ 100 ppm | No | No ( ≦ 1%) |
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL
|
Liquid detector tube
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* Adjustment for pH is required when measuring with liquid detector tubes.
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