Gastec 193 Quick-measuring Detector tubes 2-Pentenenitrile CH3CH2CH:CHCN (0.5~15ppm)
ManufacturerGastec(View more products from this manufacturer)
Model193
Contact
Secure Checkout
Quality Engagement
Easy change and return
Delivery Available
Indicator: 0.5 to 6.0 ppm
Measuring Range:
+ 0.5 to 6.0 ppm, Number of Pump Strokes 4
+ 6.0 to 15 ppm, Number of Pump Strokes 2
Sampling Time: 2 minute per pump stroke
Colour Change: Yellow → Red
Reaction Principle:
+ CH3CH2CH:CHCN + 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 6 ppm)
Nr. of tests: 5
Pump: GV-100S/110S
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 | CH3CH2CH:CHCN + 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 6 ppm) | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Temperature correction is necessary | ||
| Store the tubes at cool and dark place. | |||
Possible coexisting substances and their interferences (NOTE)
| Substance | Concentration | Interference | Change colour by itself to |
| Hydrogen chloride | No | No | |
| Hydrogen cyanide | No | No | |
Nitriles ( C3) |
+ | Red | |
| Acetone cyanohidrin | + | Red | |
| Alcohols, Esters, Ketones | 20 ppm or higher |  |
No |
| Aromatic hydrocarbons | 20 ppm or higher | |
No |
Note: Humidity scrubber removes humidity and acid gases. |
|||
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| - | - | - |
Stay Updated with Offers
Get exclusive volume discounts, bulk pricing updates, and new product alerts delivered directly to your inbox.
By subscribing, you agree to our Terms of Service and Privacy Policy.
Quick Support
Direct access to our certified experts