Institute (Golden, co)
SERI Solar Energy Research Institute (Golden, CO; now NREL)
SERP Strategic Environmental Restoration Program
SERS science and engineering research semester
SERT security emergency response team
SERT space electrochemical research and technology
SES secondary emissions standard
SES senior executive service
SES socioeconomic status
SES Standards Engineers Society
SESAME (equation-of-state library)
SESC Site Evaluation Steering Committee
SESC SGN Eurisys Services Corp.
SET Senior Executive Team
SET Standard d'Exchange et de Transfer
SETS set equation transformation system
SETS site enforcement tracking system
SETS stability-enhancing two-step (technique)
SEU single-event upset
SEU slightly enriched uranium
SEW (Air Force Safety Agency)
SEWG site evaluation working group
SF safety factor
SF scale factor
SF sick-family (attendance code)
SF slope factor
SF source factor
SF spent fuel
sf square foot (also sq ft)
SF standard form
SF Superfund (CERCLA)
SFA salary, fringe, and associates
SFA segmented flow analysis
SFA single failure analysis
SFA spectral flame analyzer
SFA standard fuel assembly
SFAS safety features actuation system
SFC shop floor control
SFC space flight center
SFC supercritical fluid chromatography
SFE supercritical fluid elution
SFIAP surplus facility inventory and assessment program (replaced SFMP)
SFIR significant finding impact report
SFM scanning force microscopy
SFMP surplus facilities management program
SFR salary factor report (BUCS)
SFR significant finding report
SFRD secret formerly restricted data
SFRFQ strong-focusing rf quadrupole
SFT stockpile flight test
SFT system fault tolerance
SFT-C spent fuel test-climax
SG safeguards
SG safety guide
SG sick grant (attendance code)
SG specific gravity (also sp gr)
SG steam generator
SG strain gage
SGA soil gas analysis
SGEMP systems-generated electromagnetic pulse
SGI Silicon Graphics, Inc.
SGML standard generalized markup language
SGR sodium-graphite reactor
SGR soft gamma repeater
SGS segmented gamma-ray scanner
SGS steam generator system
SGS subgrid scale
SGTR steam generator tube rupture
SGTS standby gas treatment system
SH single heterostructure
SH sleeve housings
SH southern hemisphere
S&H safety and health (Tiger Team subteam)
S&H shipping and handling
S&H FYP Safety and Health Five-Year Plan
SHA solid homogeneous assembly
SHA system hazard analysis
SHAPE Supreme Headquarters, Allied Powers in Europe
SHEBA solution high-energy burst assembly
SHF storage-handling facility
SHF super high frequency
SHG second harmonic generation
SHG surface heating gain
SHiP small, high performance
SHIVA (LLNL research laser, 1979)
SHMS standard hydrogen monitoring system
SHOP Small High-Power Optics Program
SHPO state historical preservation office/officer
SHRP Scientific Human Resources Board
SHSC site health and safety coordinator
SHT seal head tank
SHTS secondary heat transport system
SHTSSG secondary heat transport system steam generator
SHWL seasonal high water level
SI - SL
SI safety/site inspection
SI security inspector
SI simple interface (Cray-to-UNIX tools)
SI site investigation
SI spark ignition
SI SPARC International
SI special instruction
SI spray injection
SI Systéme International d'Unités; International
System of Units (metric standard)
SIA salary increase authorization
SIA scalable interconnect architecture
SIA Semiconductor Industry Association
SIA strategic issues analysis
SIAC specialized information analysis center
SIAM Society for Industrial and Applied Mathematics
SIC standard industrial classification/code
SICBM small intercontinental ballistic missile
SICS safety injection control system
SID sodium ionization detector
SIER special instruction engineering release
SIG site integration group
SIG special interest group
SIG strategic integration group
SIGCHI Special Interest Group on Computer and Human Interface (ACM)
SIGGRAPH Special Interest Group on Computer Graphics (ACM)
SIGINT signals intelligence
SILAS Secure Interactive Livermore Alarm System
SILC spallation-induced lithium conversion
SIMD single instruction multiple data
SIMM single in-line memory module
SIMON Semi-Intelligent Mobile Observing Navigator (a robot at SRL)
SIMP simple intermachine protocol
SIMS secondary ion mass spectroscopy
SIMS Store Inventory Management System
SIMSE systematic initiative in math & science education
SIMTC Southwest Industries Manufacturing Technology Center
SIN Scwerezeresches Institut für Nuklearforschung (Switzerland)
SINIO Signals Intelligence National Intelligence Officer
SIO serial input/output
SIO Stakeholder Involvement Office
SIOH supervisory inspection & overhead
SIOP single integrated operations plan
SIP safety implementation plan (CAA)
SIP scientific investigations plan
SIP site investigation planning
SIP state implementation plan
S/IP Strategic/Institutional Planning
SIPI scientists' institute for public information
SIPRI Stockholm International Peace Research Initiative
SIR safeguards implementation report
SIR serial infrared (HP standard)
SIR surface-insulation resistance
SIRS salary information retrieval system
SIRS satellite infrared spectrometer
SIS safety injection system
SIS space inventory system
SIS special inventory system
SIS special isotope separation (separator)
SIS stay in school (program)
SIS surface-ionization-type ion source
SIS-EDS special isotope separation engineering demonstration system
SISG superconducting image surface gradiometry
SIT safety injection tank
SIT scientific integrated test
SITE Superfund Innovative Technology Evaluation
SiTR silicon transformation reaction
SITREP situation report
SIV simian immunodeficiency virus
SJ small job (ticket number)
SJCO supplemental justification for continued operation
SJC-WCD San Juan County Water Conservation District
SJP standard job procedures
SJT small job ticket
SKA skills, knowledge & abilities
SKIM spill cleanup inventory
SKUA (Pajarito Site)
SL safety limit
SL Saha-Langmuir (equation)
SL Salem Technical Services
SL Sandia Laboratories (now SNL)
SL section leader
SL sick leave
SL stationary low (meteorology)
S/L solid-to-liquid ratio
SLA Sandia Laboratories Albuquerque
SLAC Stanford Linear Accelerator Center
SLAMS state & local air monitoring stations
SLAMS State and Local Air Monitoring System
SLAP sounds like a plan
SLAT supersonic low-altitude target
SLATEC Sandia, Los Alamos, Air Force Weapons Lab Technical Exchange Committee
SLB shallow land burial
SLBM submarine-launched ballistic missile
SLBW single-level Breit-Wigner (cross section)
SLCM submarine/sea-launched cruise missile
SLCS standby liquid control system
SLD Scientific Lab Division (Albuquerque, NM)
SLD superluminescent diode
SLD surreptitious listening device
SLEDS Sandia Laboratories Engineering Drawing System
SLI Sandia Laboratory instruction
SLIP serial line Internet/interface protocol
SLL Sandia Laboratories Livermore
SLM spatial light modulator
SLM standard laboratory module
SLM structure location maps
SLP shelf life program
SLP single link protocol
SL/PGAD site layout/plant general arrangement drawings
SLPI secretory leukocyte protease inhibitor
SLSF Sodium Loop Safety Facility
SLSM simple line source model
SLT stockpile laboratory test
SLT strong Langmuir turbulence
SLV satellite launch vehicle
SM - SN
SM safeguards measurements
SM security manual
SM Security/Safeguards Policies and Procedures Manual
SM sheet metal
SM shipping manifest
SM South Mesa Site (TA-3)
SM staff member
SM switching module (telephone)
S&M surveillance and maintenance
SMAC shipping mobility/accountability collection (transport in
group database)
SMAC shipment mobility collection system
SMAC Suspect Material Action Committee
SMART sequential modular architecture for robotics & teleoperation (Sandia)
SMART stockpile materials requirement tabulator
SMASE system management application service element (telecom./computing)
SMAW shielded metal arc welding
SMAW submerged metal arc weld
SMB server message block (computing/telecom.)
SMB Special Metallurgical Building
SMC selection and monitoring chassis
SMC special manufacturing capability (project)
SMC Specific Manufacturing Capability (Rockwell-INEL)
SMC stopped muon channel
SMCAC-EST (U.S. Army Technical Center for Explosives Safety)
SMCB Senior Management Construction Board
SMCL secondary maximum contaminant level
SMCRA Surface Mining Control & Reclamation Act of 1977
SMDS switched multimegabit data service
SME Society for Manufacturing Engineers
SME subject matter expert
SMES superconducting magnetic energy storage (superconductivity)
SMF Sample Management Facility
SMG Senior Management Group
SMI structure of management information
SM&IB Site Management & Integration Branch (T&MSS)
SMMP socioeconomic monitoring & mitigation plan
SMOA Superfund memorandum of agreement
SMP shared-memory multiprocessor
SMP Site Management Plan
SMP synchronous multiprocessing
SMPC Senior Management Planning Council
SMPTE Society of Motion Picture & Television Engineers (time code standard)
SMR standardized mortality ratio
SMRC Staff Member Review Committee
SMRSF special moment-resisting space frame
SMS source mass spectrometer
SMSA standard metropolitan statistical area
SMT surface-mount technology
SMTP simple mail transfer protocol
SMU solid (waste) management unit (usually SWMU)
S/N serial number
S/N signal/noise (ratio; also SNR)
SNA systems network architecture
SNAAQS secondary national ambient air quality standards
SNACP (simple network management protocol)
SNAP shielded neutron assay probe
SNAP significant noncompliance action program
SNAP space nuclear auxiliary power (system)
SNAP Symbolic Nuclear Analysis Program
SNARE (seismic monitoring project)
SNARL suggested noadverse response level
SNC significant noncompliers
SNCS secure network computer server
SNDV strategic nuclear delivery vehicle
SNEC Subgroup on Nuclear Export Coordination
SNF short-range nuclear forces
SNG synthetic natural gas
SNGBZ Sierra Nevada-Great Basin Boundary Zone
SNI San Nicolas Island
SNL Sandia National Laboratories
SNLA Sandia National Laboratories, Albuquerque (Sandia
Laboratories to 12/79; now SNL, NM)
SNLL Sandia National Laboratories, Livermore (now SNL, CA)
SNM special nuclear material
SNML Special Nuclear Materials Laboratory
SNMP simple network management protocol
SNO Sudbury Neutrino Observatory (Canada)
SNOW (injector design code)
SNQ spallations-neutronenquelle (source)
SNR signal-to-noise ratio
S&NSB Security and Nuclear Safeguards Branch (LAAO)
SNSI secret national security information
SNT sensitive nuclear technology
SNU solar neutrino unit(s)
SNUBS (magnetohydrodynamic code)
SNUR significant new use rule (TSCA)
SO - SP
SO seller's option
SO Sollid Optical
SO special operations
SOB Senate office building
SOB start of business
SOC sample overview committee
SOC synthetic organic chemical (carbon)
SOD sediment oxygen demand
SOD superoxide dimutases
SODAR sound, distance, and ranging
SOE safe operating envelope
SOE sequence of events
SOH state of health
S&OH safety and occupational health
SOI silicon on insulator
SOI supply operating instruction
SO/JCO standing order/justification for continued operation
SOM strength of materials
SONET synchronous optical network
SOP standard operating procedure (LA-series report designator)
SOP standard/safe operating power/procedure
SOPA synchronous-orbit particle analyzer
SOQ statement of qualification
SOR statement of requirement
SOR successive over-relaxation
SORT support operations review team
SORV stuck-open relief valve
SOS strahl-on-strahl
SOT systems operation test/testing
SOTDAT source test data
SOV soil organic vapor
SOW scope of work
SOW special order weapon
SOW stand-off weapon
SOW statement of work
SOX sound exchange (file/standard)
SP sampling point/plan
SP security procedure
SP self-potential
SP self-propelled (vehicle)
SP setpoint
SP sick-personal obligation (attendance code)
SP special purpose
SP standard procedure/practice
SP Supply and Property Department, 5/48-9/80
SPA Security Plan Assistant
SPA Software Publishers Association
SPA subsystem performance assessment
SPAG standards promotion & applications group
SPAN Space Physics Analysis Network
SPAO Security Planning & Assessment Office
SPAR Science, Philosophy & Religion (symposium)
SPAR space power advanced reactor
SPAR status of permit application report
SPARC scalable processor architecture (Sun)
SPARC Space Applications & Research Centre (Pakistan)
SPAWAR (Space & Naval Warfare Systems Command)
SPC statistical process control
SPC Superconductivity Pilot Center
SPC suppression pool cooling
SPC Systems Planning Corporation
SPCC spill control and countermeasures
SPCC spill prevention, control, and countermeasures plan
SPD Safety Programs Division (DOE)
SPD single-purpose device
SPD summary plan description
SPD symmetric and positive definite
SPDL standard page description language
SPDU session protocol data unit (telecom.)
SPE secondary particulate emissions
SPE solid-phase extraction
SPEAR surface profile analysis reflectometer
SPEC specification
SPECT single-photon-emission computed tomography
SPEERA Secretarial Panel for the Evaluation of Epidemiologic
Research Activities
SPERT (experimental test reactor, Idaho)
SPF skin protection factor
SPF site population factor
SPF Sodium Process Facility
SPF standard project flood
SPG specific gravity (also sp gr)
SPH smooth particle hydrodynamics
SPI schedule performance index
SPI Security Profile Inspector (LLNL)
SPI standard practice instruction
SPI strategic planning initiative
SPINE shared program information network
SPL spare parts list
SPIE Society of Photo-Optical Instrumentation Engineers
SPLMD soil-pore liquid monitoring device
SPM scanning probe microscopy
SPM site prioritization model
SPM standard preparation module
SPMD single-processor multiple-data
SPMS Safety Performance Measurement System (EG&G Idaho)
SPMS Strategic Planning and Management System
SPO safety project office (LANL)
SPO special project(s) office
SPOC single point of contact
SPP site personnel protection
SPP standard practice procedures
SPR Sandia Pulsed Reactor
SPR Strategic Petroleum Reserve
SPRAA Strategic Plans & Resources Analysis Agency (JCS)
SPREFS space resolving framing spectrograph
SPRPS Site Program Resource Planning System
SPR III Sandia Pulsed Reactor III
SPS safety precedence sequence
SPS Southwestern Public Service (Pantex)
SPS special project superintendent
SPS state permit system
SPS surface plasma source
SPSE Society of Professional Scientists & Engineers
SPSS short-pulse spallation source
SPSS Statistical Package for the Social Sciences
SP/ST single pole/single throw (also SPST)
SPT salvage property transfer
SPT standard penetration test
SPTE special purpose test equipment
SPU special purpose unit
SQ - SR
SQA software quality assurance
SQAR safety quality assurance representative
SQBE small-quantity burner exemption
SQC statistical quality control
SQG small-quantity generator
SQL standard/structured query language
SQ&R safety, quality, and reliability
SQUG Seismic Qualification Utility Group
SQUID superconducting quantum interference device
SQW strained quantum well
SQWFET strained quantum well field effect transistor
SR safety rod
SR Savannah River Operations Office
SR Savannah River (Plant)
SR search and rescue
SR service request
SR shielded receiver
SR source range
SR special recovery
SR spray recirculation
SR state route (roadway)
SR status report (LA-series report designator)
SR suppressed radiation
S/R safety/relief
S/R stacker/retriever
SRA Society for Risk Analysis
SRAM short-range attack missile
SRAM static random access memory
SRAP Superfund remedial accomplishment plan
SRAP supplemental remedial action plan
SRB safety review board
SRB solid rocket booster
SRBM short-range ballistic missile
SRC safety review committee
SRC sample receiving custodian
SRC Semiconductor Research Corporation
SRC solvent-refined coal
SRCS shipper/receiver confirmatory system
SRD secret restricted data
SRD service release date
SRDO snow removal duty officer (JCI)
SREF Spallation Radiation Effects Facility
SREL Savannah River Ecology Laboratory (U. of Georgia)
SREP Stockpile Reliability Evaluation Program
SRF service response force (FEMA)
SRF Size Reduction Facility (Waste)
SRFQ superconducting radio-frequency quadrupole
SRG Safety Resource Group
SRG signal reference grid
SRG spectrum-X-gamma (x-ray observatory)
SRI Stanford Research Institute
SRI SRI International
SRIE system requirements & integration engineering
SRI-2 Stanford Research Institute
SRIM simulated radar image
SRL Savannah River Laboratory (WSRC)
SRL site rehabilitation levels
SRL special recovery line
S.R.L. Sociedad de Responsabilidad Limitata
SRM standard reference materials/method
SRO Savannah River Operations
SRO senior reactor operator
SRO specification release order
SRP Savannah River Plant
SRP special repair procedure
SRPS space reactor power supply
SRR Site Recommendation Report (DOE)
SRR submittal review record
SRR system requirements review
SRRO Savannah River Restart Office (DOE)
SSRPO Salt Rock Project Office (Columbus, OH)
SRRSPO Savannah River Restart Special Projects Office (DOE)
SRS salary review system
SRS Savannah River Site (see SRP, SRL)
SRSS square root of the sum of the squares
SRT spent resin tank
SRT solids residence time
SRT spill response team
SRT strategically relocatable target
SRTB Savannah River technical baseline
SRTBI (SRTB documents issues)
SRV safety/relief valve
S/RVO safety/relief valve open
SS - ST
SS safe and secure
SS safety/security interface
SS safety stock
SS sample station
SS settleable solids
SS shift supervisor/superintendent
SS site safety
SS source & special material
SS special source
SS special studies
SS specific specification
SS stainless steel (also ss)
SS storage server for HPSS
SS superfund surcharge
SS suspended solids
S&S safeguards and security
S/S stabilization/solidification
SSA sole-source aquifer
SSA source selection authority
SSAB site-specific advisory board
SSAC self-scanning electron-array collector
SSAC soil site assimilated capacity
SSAC State's Systems of Accounting & Control
SSAR standard safety analysis report
SSAT Steady-State Advanced Tokamak
SSBN (nuclear-powered submarine, ballistic-missile-bearing)
SSC scientific support contractor/coordinator
SSC Space and Siting Committee
SSC stainless steel carbon
SSC state Superfund contract(s)
SSC Stennis Space Center
SSC structures/systems, and components
SSC Superconducting Supercollider
SSC surface storage casks
SS&C sand, slag, and crucible
SSCL Superconducting Supercollider
SSCLAB Superconducting Supercollider Laboratory
SSD safety scoping document
SSD solid-state storage device (memory)
SSD standards support document
S/SD samples and sample duplicates
SSDC Safety System Development Center
SSDO Support Services Department (JCI)
SSE safe-shutdown earthquake
SSE safe-shutdown event
SSEE subcontractor safety and environmental evaluation
SSFI safety system functional inspection
SSI screening site investigation
SSI site screening investigation
SSI size-selective inlet
SSI small scale integration
SSI steady-state irradiation
SSI Supercomputer Systems, Inc.
SSI suspect site inspection
SSIA single-stage implosion assembled
SSJ sole-source justification
SSM specialist staff member
SSM storage system manager for HPSS
SSMP/RIFS site-specific monitoring plan/work plan,
remedial investigations/feasibility studies
SSMS spark-source mass spectrometry
SSN social security number
SSNM strategic special nuclear material
SSO site safety officer
SSO Space Sciences Office, 3/8110/81
SSO space shuttle orbiter (Soviet)
SSO special security office
SSO special systems operation (Intel)
SSOD special session on disarmament
SSP site-specific plan
SSP stockpile sampling plan
SSP Strategic Systems Programs (U.S. Navy)
SSP subsurface science program
SSPS solid-state protection system
SSR satellite system receiver
SSR secondary system relief
SSR site suitability report
SSR slow-strain rate (test)
SSR specification status report
SSRI Special Supporting Research Initiatives
SSRL Stanford Synchrotron Radiation Laboratory
SSRT single-stage rocket technology
SSS safe shutdown system
SSS secondary sampling system
SSS seismically qualified shutdown system
SSS sensitized stainless steel
SSS shield and seismic support
SSS special safeguards study
SSS supplementary safety system (ink)
SSS support services subcontractor
SSSA site safeguards and security agreement
SSS ink supplementary safety system (neutron poison solution; see Ink)
SSSP site safeguards & security plan
SSPC Steel Structures Painting Council
SSRR safeguards and security readiness review
SST safe secure transport (trailer) (SNM)
SST single-shell tank(s)
SST site-specific (radiation) training
SST Space Science and Technology Division
SST station service transformer
SST supersonic transport
SSTS Space Surveillance and Tracking System
SSURO stop sale, use, and removal order (FIFRA)
SSVCO side-shooting virtual cathode oscillator
ST short term
ST sleeve target
ST static topology
ST STORES (on-line ordering and catalog system)
S&T science & technology
STA Science and Technology Agency (Japan)
STA shift technical advisor
STA station (distance along longitudinal axis from reference
point/center of gravity)
STA surface- and time-averaged
S&TA Science and Technology Alliance
STAPPA state and territorial air pollution program administrators
STAR (stability wind rose)
STAR state acid rain projects
STARS satellite tracking & ranging station
STARS State Technology Assistance Resource System (Economic
Development Department, New Mexico)
START safety and technical assessment for readiness of technology
START Strategic Arms Reduction Talks/Treaty
STB Science and Technology Base Programs
STC single-trip container
STC Society for Technical Communication
STC Space Technology Center (Air Force)
STC standard transportation commodity
STC Superconductivity Technology Center
STD standard (also std)
STDM statistical time division multiplexing
STE system test equipment
STEL short-term exposure limit
STEM scanning transmission electron microscopy
STEP Skills Training and Employment Program
STEP Standard for the Exchange of Product (Model Data)
STEP Systematic Training for Effective Parenting
STET "let stand" (proofreading mark)
STF solar test facility
STG scanning thermogravimetry
STGWP state and tribal government working group
STI scientific and technical information
STI Space Technology Initiative
STI Spectra Technology, Inc.
STI Superconductor Technologies, Inc. (Santa Barbara, CA)
STI surveillance test interval
STIP Summer Teacher Internship Program
STIS Scientific and Technical Information Service
STLC soluble threshold limit concentration
STM scanning tunneling microscopy
STM short-term memory
STM stack tritium monitor
STN (active matrix color display)
STN (information access system)
STN scientific and technical information network
STOCK (Laboratory Supply Warehouse; SM-30)
S.T.O.P. safety training observation program, JCI
STORES (LANL on-line stores ordering system; not an acronym)
STP sewage treatment plant
STP short-term program
STP spent target pool
STP standard temperature and pressure
STPA STP-absolute
STPG STP-gauge
STPP sodium tripolyphosphate
ST&RP stockpile test & repair parts
STRS stimulated thermal Rayleigh scattering
STS significant threshold shift
STS silicon tracking system
STS site tracking system
STS standard technical specifications
STS stockpile-to-target sequence
STSP stauroporine (life sciences)
STTP small (business) technology transfer program
STTP source-term test program
STU secure telephone unit (STU-III)
STU sled test unit
STU systems test unit
STV standard test vehicle
STV surface transport vehicle
SU - SZ
SU standard unit
SU supervisory (duties)
S/U startup
SUBASE submarine base (FEMA)
SUBWOG (U.S./U.K. subjoint working group)
SUCI sensitive use-control information
suFET superconducting field-effect transistor
SUN Stanford University Network
SUN Sun Microsystems Inc.
SUP standard unit of processing
SUP supplement/supplemental
SUPARCO Space & Upper Atmosphere Research Commission (Pakistan)
SUPERFISH (accelerator code)
SUPERFUND (established by CERCLA)
SUPERHET super high-energy transport
SUPO (built from the HYPO water boiler nuclear reactor;