Palestine Standards Institution pounds per square inch Program Specific Information Performance Systems International Plasma Source Instrument Proliferation Security Initiative Personnel Security Investigation Personnel Security Investigations Population Services International Product Support Integrator Protocol Specific Indication Packet Switch Interface Packet Switching Interface Packetnet System Interface Per Square Inch Planning Systems Incorporated Plan-Speed Indicator Pneumonia Severity Index pollutant standard index Pollutant Standards Index Power Static Inverter Preprogrammed Self-Instruction Pressure per Square Inch Process Safety Information Process to Support Interoperability Packet Switched Interface Packetnet Systems Interface Paid Service Indication Paul Scherrer Institute Pavement Serviceability Index
Palestine Standards Institution
Program Specific Information