Teflon PFA
Description of the term: Teflon PFA
Teflon PFA is a type of Teflon that is used to make tubing that is highly resistant to chemicals.
Water Science
Monitoring the quality of rivers and lakes is becoming more and more important as enviornmental concerns increase. A good dissolved oxygen transmitter used properly is one of the important tools to use in this regard. You may want to look at http://www.ecy.wa.gov/programs/wq/plants/management/joysmanual/4oxygen.html for some useful techniques.