Gastec 192 Quick-measuring Detector tubes Acrylonitrile CH2：CHCN (0.2~32ppm)
Manufacturer: Gastec Model: 192 - Contact
See more: Equipment Calibration-Inspection & Repair Service
Call for the best price
Hanoi city: (024) 35.381.269
Danang city: (023) 63.747.711
Bac Ninh city: (0222) 730.39.68
Hai Phong city: (0225) 730.03.89
HCM city: (028) 38.119.636
Dong Nai: 0932.160.940
Indicator: 0.5 to 10 ppm
Measuring Range:
+ 0.2 to 0.5 ppm , Number of Pump Strokes 4
+ 0.5 to 10 ppm, Number of Pump Strokes 2
+ 10 to 32 ppm , Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle:
+ CH2:C(CH3)CN+ Cr6+ + H2SO4 → HCN
+ 2HCN + HgCl2 → 2HCl+Hg(CN) 2
+ HCl+Base → Chloride
Coefficient of Variation: 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm)
Nr. of tests: 5
Pump: GV-100S/110S
Details
Performance
| Measuring Range |
|
|||
| Number of Pump Strokes |
|
|||
| Correction Factor |
|
|||
| Sampling Time | 2 minutes per pump stroke | |||
| Detecting Limit | 0.1 ppm (n=4) | |||
| Colour Change | Yellow → Red | |||
| Reaction Principle | CH2:C(CH3)CN+ Cr6+ + H2SO4 → HCN 2HCN + HgCl2 → 2HCl+Hg(CN) 2 HCl+Base → Chloride |
|||
| Coefficient of Variation | 10% (for 0.5 to 2 ppm), 5% (for 2 to 10 ppm) | |||
| Shelf Life | 3 Years | |||
| Corrections for temperature & humidity | Unnecessary | |||
| Store the tubes at cool and dark place. | ||||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
Nitriles ( C3) |
+ | Red | |
| Acetone cyanohidrin | + | Red | |
| Alcohols, Esters, Ketones | 20 ppm |  |
No |
| Aromatic hydrocarbons | 20 ppm | |
No |
| Hydrogen chloride, Hydrogen cyanide |
No | No |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 1 ppm(2014) | - | - |
- Quality Engagement
- Easy change and return
- Delivery Avaliable
- Favorable payment
