Pressure Head 2 : The potential energy per unit weight of fluid due to its potential energy; one pound per square inch of pressure elevates water to a height of (2)304 ft
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}