Psia 2 topics · 2 sources ScienceEnergyPounds/force per square inch absolute.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite Science› EnergyRenewable EnergyPounds force of pressure per square inch absolute (including atmospheric pressure).Oregon Dept of Energy — ODOE Glossary of Energy Terms retrieved 2014-06-15 Cite