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Abbreviations and acronyms found on Material Safety Data Sheets and other texts relating to the Environment, and Health and Safety Matters

Important notice for MSDS translators and authors: The abbreviations and acronyms in this list were found on MSDSs we translated. The sole aim of this list is to help you interpret the abbreviations you might encounter on safety data sheets, and constitutes in no way a recommendation for use. Some acronyms are generally accepted and appear on many MSDSs (e.g. LC50, LEL), while others are more obscure and may not be generally understood (e.g. UNK, n.o.s.). We recommend you only use well-established acronyms in you safety documentation.

510kFDA Approval for Medical Device
AC2ACGIH suspected human carcinogen
ACX NoAvailable Chemicals Xchange Number
ADMEAdministration, Distribution, Metabolism, and Excretion
AFFFAqueous Film Forming Foam
ALARAAs Low As Reasonably Achievable
ALGAllergen (Section 3 of MSDS)
ALSAdvanced Life Support
AQTXAquatic Toxicity
ASCAdministrative Support Center
ASTAboveground Storage Tank
AtmAtmosphere (unit of pressure)
BBackground (in BEI® notation)
BATBest Available Techniques
BATBiologische Arbeitsplatztoleranz (Germany, biological tolerance values for occupational exposures)
BCFBioconcentration Factor
BEI®Biological Exposure Indices (US, see ACGIH)
BHCBenzene Hexachlorides
BHTButylated Hydroxytuolene
BLOBlood (Section 3 of MSDS)
BLSBasic Life Support
BNMBone Marrow (Section 3 of MSDS)
BODBiochemical Oxygen Demand/Biological Oxygen Demand
BTEXBenzene, Toluene, Ethyl-benzene and Xylene
BTXBenzene, Toluene, and Xylene
BpBoiling Point
CARCarcinogenic Effects
CAS NoChemical Abstracts Service Number (see ACS - American Chemical Society)
CCClosed Cup
CCPCleveland Closed Cup
CGICombustible Gas Indicator
CMRsCarcinogenic, Mutagenic or toxic to Reproduction (substances)
CNSCentral Nervous System
COCCleveland Open Cup
COCChemical of Concern
CODChemical Oxygen Demand
CPGComprehensive Procurement Guidelines (EPA mechanism)
CPPCitizen Participation Plan
CPREmergency Cardiopulmonary Resuscitation
CSRChemical Safety Report
CU M/CU.MCubic Meter
CVOCChlorinated Volatile Organic Compound
Ca(Circa) about
CcCubic Centimeter
CesogConditionally-Exempt Small Quantity Generator
DALYsDisability Adjusted Life Years
DDTDichloro-Diphenyl-Trichloroethane (pesticide)
DGSADangerous Goods Safety Advisor
DNELDerived No-Effect Level
DOTDictionary of Occupational Titles, Department of Transportation (US)
DRODesignated Responsible Official
DSLDepartment Safety Liaison
ECLEnvironmental Conservation Law
ECOEnvironmental Conservation Officer
ECnExposure Concentration (n% of test population)
ED50Effective Dose 50
EDnExposure Dose (n% of test population)
EHSExtremely Hazardous Substance (material listed in
EISEnvironmental Impact Statement (US)
ELAPEnvironmental Laboratory Approval Program
EMSEmergency Medical Services
ENBEnvironmental Notice Bulletin (weekly bulletin published by DEC)
EQOEnvironmental Quality Objective
EQSEnvironmental Quality Standard
ERIC'sEmergency Response Intervention Cards (see ERICards)
ERICardsEmergency Response Intervention Cards (see ERIC's)
ESDExplanation of Significant Difference
ET50Exposure Time 50
FRPFiberglass-Reinforced Plastic
FSCFederal Supply Class (US)
GPaGigaPascal (unit of pressure)
HASPHealth and Safety Plan
HDPEHigh-Density Polyethylene
HEPA FilterHigh Efficiency Particulate Air Filter
HPVCsHigh Production Volume Chemicals
HRSHazard Ranking System
HWHazardous waste
HazMatHazardous Material
IBPInitial Boiling Point
ICMInterim Corrective Measures
ICSC International Chemical Safety Card
IDLInstrument Detection Limit
IDLHImmediately Dangerous to Life or Health
IFOInstructions For Use
IMMImmune System
IMMImmune system
INVInventory Status
IPIonization Potential
IRMInterim Remedial Measures
IRRIrritant (Section 3)
ISRInvestigative Summary Report
IVNIntravenous (see also IV)
KowOctanol/Water Partition Coefficient
LCLethal Concentration
LC50Median Lethal Concentration
LCLOLowest Lethal Airborne Concentration Tested (see also LC50, LD50)
LDLethal Dose
LD50Median Lethal Dose
LDLOLowest Lethal Dose Tested (see also LC50, LD50)
LELLower Explosive Limit/Lower Explosion Limit
LEPCLocal Emergency Planning Committee
LEPCLocal Emergency Planning Committee (US)
LEVLocal exhaust ventilation
LFLLower Flammable Limit
LFMLinear Feet per Minute
LNGLiquified Natural Gas
LPGLiquified Petroleum Gas
LPVCsLow Production Volume Chemicals
LTTDLow Temperature Thermal Desorption (contaminated soil treatment)
LUNLung (Section 3 of MSDS)
LUSTLeaking Underground Storage Tank
MAKMaximale Arbeitsplatz-Konzentrazion (Germany, Maximum Workplace Concentration, see OEL)
MCAAMonochloroacetic Acid
MCLMaximum Contaminant Level
MDI Diphenylmethane Diisocyanate
MDLMethod Detection Limit
MEKMethyl Ethyl Ketone
MELMaximum Exposure Limit
MFAGMedical First Aid Guide
MIBKMethyl Isobutyl Ketone
MIRMerchandise Inventory Receipt (US)
MLCMedian lethal concentration
MLDMild Irritation Effects
MPaMegaPascal (unit of pressure)
MRLMaximum Residue Limit
MSDSMaterial Safety Data Sheet
MTBEMethyl Tertiary Butyl Ether
MUTMutagen (Section 3 of MSDS)
MWMolecular Weight
N/ANot Applicable
N/ApNot Applicable
N/KNot Known
NA NumberNorth American Number (used in Canada and US, see also UN Number, PIN)
NCENew Chemical Entity
NCPNational Contingency Plan
NDNot Detected
ND, N/DNot Determined
NEONeoplastic Effects
NIINNational Item Identification Number (US)
NOAELNo Observed Adverse Effect Level
NOELNo Observable Effect Level
NOSNot Otherwise Specified
NRCNational Response Center (US)
NRPNational Response Team
NSNNational Supply Number (US)
NTONo Target Organs (Section 3 of MSDS)
NTP-KNational Toxicology Program-Known to be a carcinogen
NTP-RNational Toxicology Program-Reasonably anticipated to be a carcinogen
NUINuisance dust (Section 3 of MSDS)
NVOCNon-Volatile Organic Compound
NoxOxides of Nitrogen
NsNonspecific (in BEI® notation)
ODSOzone-Depleting Substances
OELOccupational Exposure Limits
OESOccupational Exposure Standard
OICOfficial In Charge
ORATSOnline European Risk Assessment Tracking System
OSBOriented Strand Board
OSOROne Substance, One Registration principle
Orm-D LabelConsumer Commodity Label
PPartition Coefficient
P.O.per os (oral administration)
P2Pollution Prevention (plan)
PAHPolynuclear Aromatic Hydrocarbons (see PNA)
PAPRPowered Air Purifying Respirator
PBTsPersistent, Bioaccumulative and Toxic substances
PCBPolychlorinated Biphenyl
PCDDsPolychlorinated Dibenzo-p-Dioxins
PCDFsPolychlorinated Dibenzofurans
PCEPerchloroethylene (see Perc)
PECPredicted Environmental Concentration
PELPermissible Exposure Limit
PF ResinPhenol-Formaldehyde resin
PGPacking Group
PINProduct Identification Number (used in Canada, see also UN Number, AN Number)
PMCCPensky-Martens Closed Cup
PMMNPremanufacture Notice Number
PMNPremanufacture Notice, Premarket Notice
PNAPolynuclear Aromatic hydrocarbons (see PAH)
PNECPrevisible Non Effect Concentration
PNOCParticulates Not Otherwise Classified
PNORParticulates Not Otherwise Regulated
PNSPeripheral Nervous System
POPsPersistent Organic Pollutants
POTWPublicly-Owned Treatment Works (sewage treatment plant)
PPEPersonal Protection Equipment
PQLPractical Quantitation Level
PRAPest Risk Analysis
PRAPProposed Remedial Action Plan
PRPPotentially Responsible Party
PRSPriority Ranking System
PSAPreliminary Site Assessment
PSIPounds per Square Inch
PURPolyurethane Foam
PURPolyurethane (foam)
PVAPolyvinyl Alcohol
PVCPolyvinyl Chloride
Perc Perchloroethylene (see PCE)
QSARQuantitative Structure-Activity Relationship
RARRisk Assessment Report (EU)
RBCARisk-Based Corrective Action
RCFRefractory Ceramic Fibers
RCPRegional Contingency Plan
RDSPrimary Irritation Dose
RELRecommended Exposure Limit
RHMResidual Hazardous Material
RLNRegulatory List Number
RQReportable Quantity (according to 40 CFR 355)
RSMRegional Safety Manager
S.G./sp.gr.Specific Gravity
SARStructure-Activity Relationship
SCBASelf-Contained Breathing Apparatus
SCPStandards Completion Program
SIDSSudden Infant Death Syndrome
SISDSpill Information System Database
SKN Skin
SNARLSuggested No Adverse Response Level
SNURSignificant New Use Rule (see TSCA)
SOMSome evidence of carcinogenicity (Section 3 of MSDS)
SOMSome evidence of carcinogenicity (Section 3)
SPCCSpill Prevention Control and Countermeasures Plan
SQGSmall Quantity Generator
SRLSpill Response Form
STELShort-Term Exposure Limit
STEVShort-Term Exposure Value
STPStandard Temperature and Pressure
STPSewage Treatment Plant
SUP DATSupply Missing Data, Supplementary Data
SVESoil Vapor Extraction
SVOCSemi-Volatile Organic Compound
SWMUSolid Waste Management Unit
T&ATime and Activity Codes
TABTechnical Assistance Bulletin
TCCTagliabue Closed Cup (see LCLO, LC50)
TCDDTetrachlorodibenzo Para-Dioxin
TCLOLowest Toxic Airborne Concentration Tested
TCLPToxicity Characteristic Leaching Procedure
TDGTransportation of Dangerous Goods
TDLOLowest Toxic Dose Tested
TLMThreshold Limit, Median
TLV-A1Threshold Limit Value-Confirmed Human Carcinogen
TLV-A2Threshold Limit Value-Suspected Human Carcinogen
TLV-A3Threshold Limit Value-Confirmed Animal Carcinogen
TLV-A4Threshold Limit Value-Not Classifiable as a Human Carcinogen
TLV-A5Threshold Limit Value-Not Suspected as a Human Carcinogen
TLV-CThreshold Limit Value-Ceiling
TLV®Threshold Limit Value
TOCTagliabue Open Cup
TPQThreshold Planning Quantity (according to 40 CFR 355)
TSDFTreatment, Storage or Disposal Facility
TSRALTemporary Safe Reference Action Level
TWATime-Weighted Average
TorrTorricelli (unit of pressure)
UELUpper Explosion Limit/Upper Explosive Limit
UFLUpper Flammable Limit
UN NumberUnited Nations Number (see also AN Number, PIN)
USMUniversal Sorbent Materials
USOSUS Occupational Health Standard
USTUnderground Storage Tank
VDVapour Density
VOAVolatile Organic Analysis
VOCVolatile Organic Compound
VPELVacated PEL (see PEL)
WEELWorkplace Environmental Exposure Limit (see AIHA)
WGKWassergefährdungsklasse (Water Hazard Class under German Federal Water Management Act)
WHCWater Hazard Class
WWTPWaste Water Treatment Plant
XPSExtruded Polystyrene Foam
XRFX-Ray Fluorescence
ZHEZero Headspace Extractor
cgsCentimeter, Gram, Second (metric system)
f/ccFibres per Cubic Centimetre of air (see also fcc)
fccFibres per Cubic Centimetre of air (seel also f/cc)
kJ/molKilojoules per mole
kPaKiloPascal (unit of pressure)
m3Cubic Meter
ml HgMilliliters of Mercury
mpMelting point
n-normal (in chemical names)
n.o.s.Not Otherwise Specified
ppbParts Per Billion
pphparts per hundred (= percent)
ppmParts Per Million
pptparts per trillion
psiaPounds per Square Inch Absolute
psigPounds per Square Inch Gauge
vPvBsVery Persistent and Very Bioacccumulative substances

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