What does SPF stand for?

Science Policy Foundation - Later, ISPF - British

Scottish Pharmaceutical Federation - British

Security Police Flight - Air Force

Security Processing Facility (SAUS)

Sender Policy Framework

Sequential Processing Facility (SAUS)

Service Publication Form (AAG)

Shared Professional Facility - Medicine (EDAA)

Shortest Path First (TNIG)

Single Point Failure (NASA)

Single Professional Female - Classified advertising

Single Project Funding (MCD)

Site Population Factor - Nuclear energy (NRCH)

Skin Protection Factor - Medicine

Smith-Palmer and Famulari - Commercial firm

Society for the Propagation of the Faith (EA)

Society of Phantom Friends (EA)

Sodium Process Facility - Office of Environmental Management, Department of Energy (DEEM)

Software Production Facility - NASA (NASA)

Software Productivity Facility (VLIE)

Solid Phase Forming (SAUS)

Somali Patriotic Front - Political party (EY)

Soundproofing (SAUS)

South Pacific Airline SA - Chile - ICAO designator (FAAC)

South Pacific Forum - Australia

South Polar Feature

Soy Protein Flour - Food technology

Spacelab Processing Facility - NASA (NASA)

Space Power Facility

Space Processing Facility - NASA

Spaero JSP - Ukraine - FAA designator (FAAC)

Spearfish - South Dakota - Airport symbol (AD)

Spearfish, SD - Location identifier - FAA (FAAL)

Specialist, Firefighter - Navy rating

Special Procedures Function (SAUS)

Special Production Fund - Australian Film Commission

Special Purpose Force (MCD)

Special Purpose Forces (SAUS)

Specific Pathogen Free (SAUS)

Specific-Pathogen Free - Medicine

Spectrofluorometer (SAUS)

Spectrophotofluorometer

Spinning Form (MCD)

Split Petal Flare (SAUS)

Split Product of Fibrin (MAE)

Spontaneous Fission - Office of Environmental Management, Department of Energy (DEEM)

Sport Arm of Florida - NCIC firearms make code (NCIC)

Springfield Resources - Vancouver Stock Exchange symbol

Spruce-Pine-Fir - Lumber (WOHB)

Standard Pacific - NYSE symbol

Standard-Pacific Corp. - NYSE symbol (SPSG)

Standard Perfusion Fluid - Medicine (DMAA)

Standard Pesticide File - Derwent Publications Ltd. - Database

Standard Plume Flowfield (ACAE)

Standard Program Facility (NITA)

Standard Project Flood - Nuclear energy (NRCH)

Start-Promoting Factor - Cytology

State and Private Forestry - USDA Forest Service (ALAC)

Static Permutation Flowshop (VLIE)

St. Paul-En-Foret - France - Seismograph station code, US Geological Survey (SEIS)

St. Photios Foundation (EA)

Strategic Projection Force (ACAE)

Strategic Protection Force

Stressed Panel Fasteners

Structured Programming Facility - Computer science

Studded Panel Fastener (DNAB)

Subscriber Plant Factor - Telecommunications

Sun Protection Factor (SAUS)

Sun-Protection Factor - Cosmetics industry

Superabsorbent Polymer Formulation

Superfine (SAUS)

Superplastic Formability (SAUS)

Super Plastic Formed - Metal fabrication

Superplastic Forming - Materials science

Super Processing Furnace (SAUS)

Surrogate Parent Foundation (EA)

Survival Probability Function

Synthesis-Phase Fraction - Medicine (CDI)

Synthetic Phenolic Foam

System Performance Factor - Telecommunications (TEL)

System Productivity Facility - Computer science

System Programming Facility (SAUS)

Systems Productivity Facility (SAUS)