Gastec 12H Quick-measuring Detector tubes Hydrogen cyanide HCN
Manufacturer: Gastec Model: 12H - Request a Quotation
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Indicator: 0.05 to 1.6%
Measuring Range: 0.05 to 1.6%, Number of Pump Strokes 1
Sampling Time: per pump stroke
Colour Change: Yellow → White
Reaction Principle: HCN+Na2Pd(SO3)2 → White reaction product
Coefficient of Variation: 10% (for 0.05 to 0.4 %), 5% (for 0.4 to 1.6 %)
Nr. of tests: 10
Pump: GV-100S/110S
Measuring Range | 0.05 to 1.6% |
Number of Pump Strokes | 1 |
Correction Factor | 1 |
Sampling Time | 1 minute per pump stroke |
Detecting Limit | 0.005% (n=1) |
Colour Change | Yellow → White |
Reaction Principle | HCN+Na2Pd(SO3)2 → White reaction product |
Coefficient of Variation | 10% (for 0.05 to 0.4 %), 5% (for 0.4 to 1.6 %) |
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 |
Carbon monoxide | + | Dark brown | |
Hydrogen sulphide | + | Dark brown | |
Ethylene | + | Dark brown |
Calibration gas generation | High pressure gas cylinder method |
TLV-TWA | TLV-STEL | Explosive range |
- | C 4.7 ppm(2014) | 5.6 to 40 % |
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