- water vapor
- hydrogen sulfide
- carbon dioxide
The Uniphos system consists of a manually operated hand pump and the detector tube for the specific gas. The detector tube system is often used with a gas sampling bulb connected directly to the gas supply.
The detector tubes are calibrated by the manufacturers and delivered with an expiration date stamped on the packets. The pumps are hand operated aspirating type pumps which should be leak tested prior to use. Leak testing the ASP-40 piston style pump takes only three minutes.
For more information on how to leak test as well as a comprehensive list of tubes for measurement in natural gas, download our natural gas info sheet.