Gastec 143 Quick-measuring Detector tubes Vinyl acetate CH3CO2CH:CH2 (5~250ppm)
ManufacturerGastec(View more products from this manufacturer)
Model143
Contact
Secure Checkout
Quality Engagement
Easy change and return
Delivery Available
Indicator: 10 to 100 ppm
Measuring Range:
+ 5 to 10 ppm, Number of Pump Strokes 4
+ 10 to 100 ppm, Number of Pump Strokes 2
+ 100 to 250 ppm, Number of Pump Strokes 1
Sampling Time: 30 seconds per pump stroke
Colour Change: White → Brown
Reaction Principle: CH3CO2CH:CH2+C6H3(CH3)3+ H2S2O7 → Condensation Polymer (Brown)
Coefficient of Variation: 15% (for 10 to 20 ppm), 10% (for 20 to 100 ppm)
Nr. of tests: 5
Pump: GV-100S/110S
Performance
| Measuring Range |
|
|||
| Number of Pump Strokes |
|
|||
| Correction Factor |
|
|||
| Sampling Time | 30 seconds per pump stroke | |||
| Detecting Limit | 1 ppm (n=4) | |||
| Colour Change | White → Brown | |||
| Reaction Principle | CH3CO2CH:CH2+C6H3(CH3)3+ H2S2O7 → Condensation Polymer (Brown) | |||
| Coefficient of Variation | 15% (for 10 to 20 ppm), 10% (for 20 to 100 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 |
| Aldehydes | + | Brown | |
| Ketones | + | Brown | |
| Ethylene | ≧ 1000 ppm | + | Yellow |
| Vinyl chloride | ≧ 500 ppm | + | Yellow |
| Calibration gas generation | Diffusion tube method |
| TLV-TWA | TLV-STEL | Explosive range |
| 10 ppm | 15 ppm | 2.6 to 13.4% |
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