Acetylene gas detection tube

1. Principle and usage method of long gas detection tube
principle
The basic measurement principle of CO, CO2, H2S, O2, SO2, NH3 and other detection tubes is linear colorimetric method, which means that the measured gas undergoes a colored reaction with the indicator gel through the detection tube, forming a color changing layer (color changing column). The length of the color changing layer is proportional to the concentration of the measured gas.
2. Main technical parameters (see attached table)
3. Attachments (per box)
① One section of rubber hose; Φ 3 × 5, length 20cm
② A small grinding wheel
4. Storage and transportation conditions
This product should be stored in a cool and dry place away from light, and sunlight is strictly prohibited. The storage temperature should not exceed 40 ℃. Glass products should be handled with care.
5. Usage method
All kinds of calibration tubes can be used in conjunction with CZY-50 gas calibration tubes, cylindrical positive pressure samplers, etc.
After flushing the sampler with air at the testing site, take a certain volume of on-site air, cut open both ends of the calibration tube, connect the lower end of the calibration tube (the end with a "0" on the concentration scale) to the outlet of the sampler (calibrator) with a short rubber hose, pass through the calibration tube at a constant speed for the specified time, and then directly read the percentage concentration of the measured gas according to the number indicated on the upper end of the calibration tube's color changing column (or ring).