TNI Logo The NELAC Institute


The following is a general list of acronyms and their definitions. Note: scroll down for a list of TNI-specific acronyms.

AA Atomic Absorption
ADMI American Dye Manufacturers Institute
AED atomic emission detection
AES atomic emission spectrophotometry
AF atomic fluorescence
ANSI American National Standards Institute
AOX adsorbable organic halogen
ARAR applicable or relevant and appropriate requirement
ASQC American Society for Quality Control
ASTM: ASTM International
ATP: Alternate Test Procedure
BACT best available control technology
BAT best available technology economically achievable
BCT best conventional pollutant control technology
BDAT Best Demonstrated Available Technology
BIFs Boilers and Industrial Furnaces
BFB bromofluorobenzene
BNA base, neutral and acid
BOD Biochemical Oxygen Demand
BPT best practicable control technology currently available
BS blank spike
BTEX benzene, toluene, ethyl benzene and xylene
BTX benzene, toluene and xylene
CAA Clean Air Act
CAMU corrective action management unit
CAS: Chemical Abstract Services
CATC cyanide amenable to chlorination
CBSA chlorobenzenesulfonic acid
CCA copper chromium arsenic
CCC calibration check compound
CCS contract compliance screening
CCV continuing calibration verification
CE capillary electrophoresis
CEM continuous emissions monitor
CF Calibration Factor
CFC chlorofluorocarbon
CFR Code of Federal Regulations
CI chemical ionization
Cl2 Chlorine
CLP Contract Laboratory Program
CHMM Certified Hazardous Materials Manager
CMI corrective measures implementation
CMS corrective measures study
CO Carbon Monoxide
COD chemical oxygen demand
COC Chain-of-Custody
CRDL Contract Required Detection Limit
CRL certified reporting limit
CRM Certified Reference Material
CRQL Contract Required Quantitation Limit
CSO combined sewer overflow
CV Coefficient of Variation
CVAA Cold Vapor Atomic Absorption Spectroscopy
CWA: Clean Water Act
CWS Community Water System
CZE capillary zone electrophoresis
DAD diode array detector
DBC dibutyl chlorendate
DBCP 1,2-dibromo-3-chloropropane
DBF dibenzofurans
DBMS database management system
DCM dichloromethane
D/DBP disinfectants and disinfection by-products
DDT dichlorodiphenyltrichloroethane
DFTPP Decafluorotriphenylphosphine
D/F Dioxins/Furans
DL detection limit
DNAPL dense nonaqueous-phase liquid
DNT 2,6-dinitrotoluene
DOC Dissolved Organic Carbon
DOE Department of Energy
DOT Department of Transportation
DQO Data Quality Objective
DO dissolved oxygen
DRO diesel-range organics
EDB 1,2-dibromoethane
EDD electronic data deliverable
EH&S Environmental Health and Safety
El electron impact ionization
EIA enzyme immunoassay
ELCD electrolytic conductivity detection
ELISA enzyme-linked  immunosorbent assay
EPA U.S. Environmental Protection Agency
EPC electronic pressure control
EPTOX extraction procedure toxicity
EQL estimated quantitation limit
ESP Electrostatic Precipitator
ECD electron capture detection
FAA Flame Atomic Absorption Spectroscopy
FTIR Fourier Transform Infrared Spectrometry
FIA flow-injection analvsis
FID flame-ionization detection
FIQ fuel identification and quantitation (USACE)
FIT field investigation team
FLAA flame atomic absorption (Also FAA)
FPD flame photometric detection
FS feasibility study
FSP field sampling plan
GC Gas Chromatography
GC/MS Gas Chromatography/Mass Spectrometry
GFAA Graphite Furnace Atomic Absorption Spectroscopy
GLC gas-liquid chromatography
GPC gel-permeation chromatography
GRO gasoline-range organics
HAA haloacetic acid
HAN haloacetonitrile
HAP hazardous air pollutant
HAZMAT hazardous materials
HCFC hydrochlorofluorocarbon
HCl Hydrochloric acid
HDPE High Density Polyethylene
HEM hexane extractable material
HLW high-level (radioactive) waste
HMM hazardous materials management
HON Hazardous Organic NESHAPs
HPLC High Performance Liquid Chromatography
HRGC High Resolution Gas Chromatography
HRMS High Resolution Mass Spectrometry
HRS Hazardous Ranking System
HSWA Hazardous and Solid Waste Amendments
HVAC heating, ventilation and air ­conditioning
HWC Hazardous Waste Combustion/Combustor
IA immunoassay
IC ion chromatography
ICAP Inductively Coupled Argon Plasma Spectroscopy
ICP Inductively Coupled Plasma Spectroscopy
ICP-AES Inductively Coupled Plasma Atomic Emission Spectroscopy
ICP/MS Inductively Coupled Argon Plasma Mass Spectrometry
ICR Information Collection Request
ICS interference check sample
ICV initial calibration verification
IDL Instrument Detection Limit
IEC interelement correction factor
IFB invitation for bid
IMR Interim Monitoring Relief
IOC Inorganic Chemical
IR Infrared Spectroscopy
ISO International Organization for Standardization
ISE ion-selective electrode
IR infrared spectrophotometry
LAN local area network
LC liquid chromatography
LCL Lower Control Limit
LCS Laboratory Control Sample
LDR Land Disposal Restrictions
LEL lower explosive limit
LFB Laboratory Fortified Blank
LIMS laboratory information management system
LLE liquid-liquid extraction
LLW low-level (radioactive) waste
LOD limit of detection
LOQ limit of quantitation
LQG large-quantity generator
LRGC Low Resolution Gas Chromatography
LRMS low-resolution mass spectrometry
LSC liquid scintillation counting
LSE liquid-solid extraction
LUST leaking underground storage tank
LVM Low-volatile Metals
LWAK Lightweight Aggregate Kiln
LWL Lower Warning Limit
MACT Maximum Achievable Control Technology
MAE microwave-assisted extraction
MBAS Methylene Blue Active Substance
MCL maximum contaminant level
MCLG maximum contaminant level goal
MDA Minimum Detectable Activity
MDC Minimum Detectable Concentration
MDL Method Detection Limit
MEK methyl ethyl ketone
MOU memorandum of understanding
MS Matrix Spike
MS mass spectrometry
MSA method of standard additions
MSD Matrix Spike Duplicate
MSD mass-selective detection
MSDS Material Safety Data Sheet
MS/MS multistage mass  spectrometry
MSW municipal solid waste
MTBE methyl-tertiary-butylether
NAPL nonaqueous-phase liquid
NESHAP National Emission Standards for Hazardous Air Pollutants
NDIR nondispersive infrared
NIOSH National Institute for Occupational Safety and Health
NIST National Institute of Standards Technology
NMOC Non-Methane Organic Compounds
NMR nuclear magnetic resonance
NORM naturally occurring radioactive materials
NOx nitrogen oxides
NPDES: National Pollutant Discharge Elimination System
POTW: Publicly Owned Treatment Works
NPD nitrogen-phosphorus detection
NPDES National Pollutant Discharge Elimination System
NPDWR National Primary Drinking Water Regulation
NRC Nuclear Regulatory Commission
NRM National Reference Material
NSPS new source performance standards
NTNCWS Non-transient, Non-community Water System
OCP organochlorine pesticides
OCPSF organic chemicals, plastics and synthetic fillers
PA preliminary assessment
PAH Polynuclear Aromatic Hydrocarbons (or PNA)
PBMS performance based measurement system
PCB Polychlorinated Biphenyls
PCDD polychlorinated dibenzo-p-dioxins
PCDF polychlorinated dibenzofurans
PDA photodiode array
PE Performance Evaluation
PEL permissible exposure limit
PFBBR perfluorobenzyl bromide
PFTPA perfluorotributylamine
PIC Product of Incomplete Combustion
PID photoionization detection
PM Particulate Matter
PMP project management plan
PMR Permanent Monitoring Relief
POC purgeable organic carbon
POTW publicly owned treatment works
PPE personal protective equipment
PQL Practical Quantitation Limit
PRP potentially responsible party
PSES pretreatment standards for existing sources
PSNS pretreatment standards for new sources
PUF Polyurethane Foam
PWS Public Water System
QA Quality Assurance
QAPjP Quality Assurance Project Plan
QAPP Quality Assurance Program Plan
QC Quality Control
QTM quick turnaround method
RA remedial action
RACT reasonably available control technology
RAP remedial action plan
RBCA risk-based corrective action
RCRA Resource Conservation Recovery Act
RDL Reliable Detection Level
REM Registered Environmental Manager
RF Response Factor
RFA RCRA facility assessment
RFI RCRA facility investigation
RFP request for proposal
RI remedial investigation
RIA Regulatory Impact Assessment
RI/FS remedial investigation/ feasibility study
RL Reporting Limit
RMS root mean square
ROD Record of Decision
RPD Relative Percent Difference
RQ reportable quantity
RRF Relative Response Factor
RSD Relative Standard Deviation
RT retention time
SAP sampling and analysis plan
SCBA self-contained breathing apparatus
SD standard deviation
SDG sample delivery group
SEM scanning electron microscopy
SFC supercritical fluid chromatography
SFE supercritical fluid extraction
SGT silica-treated hexane extractable material
SI site investigation
SIM selected-ion monitoring
SIP state implementation plan
SM: Standard Methods
SOC synthetic organic chemical
SOP Standard Operating Procedure
SOx sulfur oxides
SPCC System Performance Check Compounds
SPE solid-phase extraction
SPME solid-phase microextraction
SQG small-quantity generator
SRL Standard Reporting Limit
SRM Standard Reference Material
STGFAA Stabilized Temperature Graphite Furnace Atomic Absorption Spectroscopy
STPF stabilized-temperature platform furnace
SVM Semivolatile Metals
SVOA semivolatile organics analysis
SVOC semivolatile organic compound
SWAP Source Water Assessment Program
SWMU solid waste management unit
TCLP Toxicity Characteristic Leaching Procedure
TCD thermal conductivity detection
TCDD tetrachlorodibenzodioxin
TCDF tetrachlorodibenzofuran
TCE trichloroethylene
TC/MS thermal chromatography/mass spectrometry
TDS total dissolved solids
TEF toxicity equivalency factor
TEM transmission electron  microscopy
TIE toxicity identification  evaluation
THM trihalomethane
TIC tentatively identified compounds
TKN Total Kjeldahl Nitrogen
TLC thin-layer chromatography
TLV threshold limit value
TOC Total Organic Carbon
TOV total organic vapor
TOX Total Organic Halides
TPH total petroleum hydrocarbon
TPH-D total petroleum hydrocarbons as diesel
TPO technical project officer
TQM total quality management
TRPH total recoverable petroleum hydrocarbon
TSD treatment, storage, and disposal
TSDF treatment, storage, and disposal facility
TSP total suspended particulate
TSS total suspended solids
TWA time-weighted average
UTS Universal Treatment Standards
USEPA United States Environmental Protection Agency
USGS: United States Geological Survey
UCL Upper Control Limit
UCMR Unregulated Contaminant Monitoring Rule
UST underground storage tank
UV/vis ultraviolet/visible-light
UWL Upper Warning Limit
VCSB: Voluntary Consensus Standards Body
VOA Volatile Organic Analyte
VOC volatile organic compound
VOST Volatile Organic Sampling Train
WAD weak-acid dissociable (cyanide)
WAN wide area network
WHP Wellhead Protection
WS Water Supply
WP Water Pollution
WWTP  wastewater treatment plant
XRF X-ray fluorescence
ZHE zero-headspace extraction


TNI Acronyms

The followng is a list of acronyms and definitions specific to TNI:

AB Accreditation Body
AC NELAP Accreditation Council
ACIL American Council of Independent Laboratories
ANS American National Standards
ANSI American National Standards Institute
APHL Association of Public Health Laboratories
ASDWA Association of State Drinking Water Administrators
AWWA American Water Works Association
CSDP Consensus Standards Development Program
CSD EC Consensus Standards Development Executive Committee
DW Drinking Water
EC Executive Committee
EPA Environmental Protection Agency
ET Evaluation Team
EC Evaluation Coordinator
FAC Field Activities Expert Committee
FEM EPA Forum on Environmental Measurements
FoPT Field of Proficiency Testing
FSMO Field Sampling and Measurement Organization
IEC International Electrochemical Commission
ILAC International Laboratory Accreditation Cooperation
IS Interim Standard
ISO International Standards Organization
LAB Laboratory Accreditation Body Expert Committee
LASEC Laboratory Accreditation System Executive Committee
LE Lead Evaluator
NACLA National Cooperation for Laboratory Accreditation
NACWA National Association of Clean Water Agencies
NEFAP National Environmental Field Activities Program
NEFAP EC National Environmental Field Activities Program Executive Committee
NELAP National Environmental Laboratory Accreditation Program
NEMC National Environmental Monitoring Conference
NGAB Non-Governmental Accreditation Body
NPW Non-Potable Water
OGWDW EPA Office of Ground Water and Drinking Water
PT Proficiency Testing
PTP Proficiency Testing Program
PTPEC Proficiency Testing Program Executive Committee
PTPA Proficiency Test Provider Accreditor
QS Quality System
SCM Solid and Chemical Materials
SIR Standard Interpretation Request
SOP Standard Operating Procedure
SSAS Stationary Source Audit Sample
TNI The NELAC Institute*
VDS Voting Draft Standard
WDS Working Draft Standard
WEF Water Environment Federation
WET Whole Effluent Toxicity

* Note that in the context of TNI, the word NELAC is not an acronym; it is a contrived word.