GASTEC P-72-H Permeation Tube Ethyl Mercaptan
Although technology is always evolving, one demand for our products never changes: the demand for customer safety. Whenever we contribute to customer safety, we are presented with an opportunity to develop further. GASTEC holds this corporate creed of safety and development in high esteem, as it strives to grow while always putting customer safety first.

Generating calibration gas with a permeation tube. Concentration range 0.04 – 1.87 ppm.
*As Permeation tubes have individual differences in permeation rates, the above concentration ranges may differ slightly from the actual range that can be controlled.
Features OF Gastec P-72-H Permeation Tube Ethyl Mercaptan
Stable Gas Generation: Uses high-purity Ethyl Mercaptan liquid sealed in a fluororesin (FEP) tube. The gas permeates the tube wall at a constant rate when maintained at a precise temperature.
High Reliability: The gas concentration levels are determined based on dynamic weight loss (gravimetric method), making this a highly accurate primary standard for calibration.
Safety & Convenience: A much safer alternative to high-pressure gas cylinders. It allows for the generation of toxic or smelly gases “on-demand” in a controlled laboratory environment.
PD-1 Compatibility: Engineered specifically for the oven and flow systems of the Gastec Permeater PD-1B and PD-1C.
Traceable Calibration: Each tube comes with a specific permeation rate calibrated at a specific temperature, ensuring NIST-traceable results for your safety protocols.
Technical Specifications OF Gastec P-72-H Permeation Tube Ethyl Mercaptan
| Specification | Details |
| Model Number | P-72-H |
| Target Gas | Ethyl Mercaptan (Ethanethiol) |
| Chemical Formula | $C_2H_5SH$ |
| Typical Concentration Range | 0.04 – 1.87 ppm (When used with PD-1 system)* |
| Typical Permeation Rate | ~95 ng/min (at 35°C) |
| Standard Calibration Temp | 35°C (Standard for the PD-1 series) |
| Generation Method | Permeation Tube Method |
| Tube Material | Fluororesin (FEP) |
| Compatible System | Gastec Permeater PD-1B, PD-1B-2, PD-1C |
For more information and price: Gastec P-72-H Permeation Tube Ethyl Mercaptan
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