Before revision: Double-walled containment systems are also used for certain classes of toxic or corrosive chemicals — mostly gases— used in semiconductor fabrication.Center for Continuous Process Safety, New York, NY Continuous monitoring for hazardous material releases , John Wiley & Sons, added to ScibD 28 October 2009; 104 pagesHairston, James E. Underground Storage Tanks (USTs) And NPS Pollution Alabama Cooperative Extension System; ANR-790-4.8.3, June 1995; accessed 2010Frankel, Michael - Facility Piping Systems Handbook: For Industrial, Commercial, and Healthcare, Chapter 2.46, Third Edition, McGraw Hill, Copyright 2010 Double-walled pipes may also be used where a waste water pipe traverses a drinking water catchment area.
After revision: Double-walled containment systems are also used for certain classes of toxic or corrosive chemicals , mostly gases, used in semiconductor fabrication.Center for Continuous Process Safety, New York, NY Continuous monitoring for hazardous material releases , John Wiley & Sons, added to ScibD 28 October 2009; 104 pagesHairston, James E. Underground Storage Tanks (USTs) And NPS Pollution Alabama Cooperative Extension System; ANR-790-4.8.3, June 1995; accessed 2010Frankel, Michael - Facility Piping Systems Handbook: For Industrial, Commercial, and Healthcare, Chapter 2.46, Third Edition, McGraw Hill, Copyright 2010 Double-walled pipes may also be used where a waste water pipe traverses a drinking water catchment area.