Gastec 191TP Detector tubes Gas or Vapour Acrylonitrile CH2：CHCN (0.2 - 12.6 ppm )
ManufacturerGastec(View more products from this manufacturer)
Model191TP
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Calibration Range: 0.2 - 3.0 ppm
Measuring Range: 0.2 - 12.6 ppm
Sampling (flow) Rate: 100mL/min , 50mL/min
Sampling Volume: 1000mL , 500mL
Sampling Time: 10 min
Colour Change: Yellow → Pink
Nr. of tests: 5
Automatic Gas Sampler: GSP-300FT-2
Specifications
| Calibration Range | 0.2 - 3.0 ppm |
| Measuring range | 0.2 - 12.6 ppm |
| Sampling (flow) Rate | 100mL/min , 50mL/min |
| Sampling Volume | 1000mL , 500mL |
| Sampling Time | 10min |
| Detecting Limit | 0.03ppm (1000mL) |
| Colour Change | Yellow → Pink |
| Corrections for temperature/humidity | Necessary for 5 to 40ºC Unnecessary for R.H.10 to 90% |
| Shelf life | 2 years |
Possibly coexisting substances and their interferences (NOTE)
| Substance(s) | Interference | Colour change by itself |
| Hydrogen chloride |  5ppm |
No | Pink at 10 ppm |
| Hydrogen cyanide | + | Pink | |
| Acetone |  10ppm |
+ | No discolouration |
| Acetone cyanohidrin | + | Pink | |
| Ethyl Acetate | 30ppm |
+ | Pink at 200 ppm |
| Toluene | 0.2ppm |
 |
Pink at 70 ppm |
| Hexane | 40ppm |
No | No discolouration |
|
Methanol |
40ppm |
|
No discolouration |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 2 ppm |
-- |
3 to 17% |
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