Gastec 5DH Passive Dosl Tubes sulphur dioxide SO2 (10 ~ 600 ppm)
Manufacturer: Gastec Model: 5DH - Request a Quotation
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Indicator: 50 to 600 ppm
Measuring Range: 10 to 600 ppm
Sampling Hours: 1 to 5 hours
Colour Change: Bluish purple → White
Reaction Principle: SO2 + I2 +H2O → 2HI + H2SO4
Coefficient of Variation: 10% (for 50 to 600 ppm・hr)
Nr. of tests: 10
Measuring Range | 10 to 600 ppm |
Sampling Hours | 1 to 5 hours |
Detecting Limit | 1 ppm (5 hours) |
Colour Change | Bluish purple → White |
Reaction Principle | SO2 + I2 +H2O → 2HI + H2SO4 |
Coefficient of Variation | 10% (for 50 to 600 ppm・hr) |
Shelf Life | 3 Years |
Corrections for temperature & humidity | Temperature correction is necessary |
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Nitrogen dioxide | No | ||
Hydrogen sulphide | + | White |
Calibration gas generation | Permeation tube method |
TLV-TWA | TLV-STEL | Explosive range |
- | 0.25 ppm (2014) | - |
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