Chemistry Acronyms

Alphabetical Listing of Chemistry Acronyms

• UDF — Unrestricted Dirac-Fock
• UDI — Utility Data Institute (power Generation)
• UDMH — Unsymmetrical Dimethyl Hydrazine (Alar Metabolite)
• UDP — Uridine 5′-diphosphate
• UDRI — University of Dayton Research Institute
• UDWA — Unitarized Distorted-wave Approximation
• UDWBA — Unitarized Disorted Wave Born Approxn. (for Scattering)
• UEATC — European Union For Technical Agreements In Construction (French; L’Union Europeenne Pour L’Agrement Technique Dans La Construc
• UEBS — Unitarized Eikonal Born Series (in Electron-atom Scattering)
• UEGO — Universal Exhaust Gas Oxygen Sensor
• UEL — Upper Explosive Limit
• UERPIC — Underground Excavation And Rock Properties Information Center
• UF — Ultrafiltration (water Treatment)
• UF — Uncertainty Factor (in Oral RfD)
• UFC — Uniform Fire Code
• UFF — Universal Force Field
• UFFI — Urea-formaldehyde Foam Insulation
• UFG — Ultrafine Grained
• UFL — Upper Flammable Limit
• UFM — Ultrasonic Force Microscopy
• UFP — Ultrafine Particles
• UGF — Unitary-group Formulation (in Many-body Quantum Theory)
• UGLCC — Upper Great Lakes Connecting Channels
• UHC — Unburned Hydrocarbons
• UHE — Ultra-high Energy
• UHF — Ultra-high Frequency
• UHF — Unrestricted Hartree-Fock
• UHF-AA — Unrestricted Hartree-Fock (with Spin) Annihilation
• UHF-CO — Unrestricted Hartree-Fock Crystal Orbital
• UHFQ — Unrestricted Hartree-Fock With Quartet Annihilation
• UHFS — Unrestricted Hartree-Fock-slater
• UHIPI — Ultrahigh Intensity Post-ionization
• UHMPE — Ultra High Modulus Polyethylene
• UHMWPE — Ultra High Molecular Weight Polyethylene
• UHP — Ultra High Purity
• UHPLC — Ultrahigh-pressure Liquid Chromatography
• UHT — Ultra High Temperature
• UHTS — Ultra High-throughput Screening
• UHV — Ultra High Vacuum
• UHVEM — Ultra High Voltage Electron Microscopy
• UIC — Underground Injection Control
• UIHRS — Upflow Inclined High-rate Settlers
• UJT — Unijunction Transistor
• UKAEA — United Kingdom Atomic Energy Authority
• UKAS — United Kingdom Accreditation Service
• UKAWRG — United Kingdom Acid Waters Review Group
• UKB — Unrestricted Kinetic Balance (in Calcns. of Wave Functions And Energies)
• UKIRT — United Kingdom Infrared Telescope
• UKMO — United Kingdom Meteorological Office
• ULDPE — Ultra Low Density Polyethylene
• ULEV — Ultra Low Emission Vehicle
• ULF — Ultra Low Frequency
• ULFM — Unified Ligand Field Model (for Mol. Electronic Energies)
• ULIRG — Ultraluminous Infrared Galaxy
• ULPA — Ultra Low Penetration Air
• ULSI — Ultra-large-scale Integration
• ULTRA — Underground Leak Transport Assessment Model
• UMDE — Ultramicrodisk Electrode
• UMEA — Ultramicroelectrode Array
• UMER — Ultrasonically Modulated Electron Resonance
• UMINDO — Spin-unrestricted Modified Intermediate Neglect of Differential Overlap
• UMIX — User-Manufacturer Information EXchange
• UMLS — Unified Medical Language System
• UMNDO — Spin-unrestricted Modified Neglect of Diatomic Overlap
• UMO — Unmodified Molecular Orbital
• UMP — Unrestricted Moeller-Plesset
• UMP — Uridine 5′-phosphate
• UMP2 — Unrestricted Moeller-Plesset 2nd-order (perturbation Theory)
• UMP4SDTQ — Unrestricted Moeller-Plesset 4th-order (perturbation Theory With) Single
• UMTRCA — Uranium Mill Tailings Radiation Control Act
• UNAMAP — Users’ Network For Applied Modeling of Air Pollution
• UNCED — United Nations Conference On Environment And Development
• UNDS — Uniform National Discharge Standards
• UNECE — United Nations Economic Commission For Europe
• UNEP — United Nations Environmental Program
• UNESCO — United Nations Educational
• UNFCCC — United Nations Framework Convention On Climate Change
• UNIDO — United Nations Industrial Development Organization
• UNIFAC — Universal Quasichem. Functional Group Activity Coeffs.
• UNIRAM — Software For Reliability
• UNITAR — United Nations Institute For Training And Research
• UNO — Unrestricted Natural Orbital
• UNO-CAS — Unrestricted Natural Orbital-complete Active Space
• UNOS — United Network For Organ Sharing
• UNS — Unified Numbering System For Metals And Alloys
• UNSCEAR — United Nations Scientific Committee On The Effects of Atomic Radiation
• UOFMN — Unified Organically Functionalized Mesoporous Network
• UOP — Universal Oil Products
• UOT — Universal Oxidn. Test
• UOVMO — Unoccupied Valence-type Mol. Orbital
• UPA — Unitary-pole Approximation
• UPD — Underpotential Deposition
• UPES — Ultraviolet Photoelectron Spectroscopy
• UPF — UV Protection Factor
• UPOT — Union Pacific Oxidation Test
• UPS — UV Photoelectron Spectroscopy
• UPS — Uninterrupted Power Systems (for Computer Networks)
• UPTF — Upper Plenum Test Facility
• UPVC — Unplasticized Poly(vinyl Chloride)
• UPW — Ultrapure Water