Pumping Apparatus Driver Operator (1st Edition)
Commonly Used Abbreviations

AFFF Aqueous Film Forming Foam
ARFF Aircraft Rescue & Fire Fighting
Btu British Thermal Unit
CFM Cubic Feet per Minute
FDC Fire Department Connection
FFFP Film Forming Fluoroprotein Foam
GPM Gallons per Minute
kPa Kilopascal
LDH Large Diameter Hose
MDH Medium Diameter Hose
NFPA National Fire Protection Association
NPDP Net Pump Discharge Pressure
NST National Standard Thread
PDP Pump Discharge Pressure
PSI Pounds per Square Inch
PSIG Pounds per Square Inch Gauge
PTO Power Take Off
RIV Rapid Intervention Vehicle
SDH Small Diamter Hose
UL Underwriter's Laboratories, Inc.