Laboratory Acronyms
The following is a list of laboratory acronyms commonly used in environmental testing:
| ACRONYM | DEFINITION | 
|---|---|
| AA | Atomic Absorption Spectrometry (aka AAS) instrument used to measure concentration of metals in samples | 
| ACS | American Chemical Society | 
| APG | Analytical Products Groups (manufacturer of PE Samples) | 
| ASTM | American Society for Testing and Materials | 
| A2LA | American Association for Laboratory Accreditation | 
| BFB | 4-Bromofluorobenzene | 
| BNA | Base Neutral Acid organic compounds (aka SOC or SVOCs) | 
| BOD | Biochemical Oxygen Demand | 
| BTEX/BETX | Benzene, Toluene, Ethylbenzene, Xylenes | 
| CARB | California Air Resources Board | 
| CAS Number | Chemical Abstract Service Registry Number | 
| CCB | Continuing Calibration Blank sample | 
| CCC | Continuing Calibration Check sample | 
| CCV | Continuing Calibration Verification sample | 
| CFC | Chlorofluorocarbon | 
| CFU | Colony-Forming Unit | 
| CLP | Contract Laboratory Program (through USEPA) | 
| COC | Chain-of-Custody | 
| COD | Chemical Oxygen Demand | 
| DCM | Dichloromethane (aka Methylene Chloride) | 
| DEC | Department of Environmental Conservation | 
| DEQ | Department of Environmental Quality | 
| DHS | Department of Health Services | 
| DOE | Department of Ecology (state or federal) | 
| DOH | Department of Health | 
| EPA | U. S. Environmental Protection Agency (aka USEPA) | 
| EPCRA | Emergency Planning & Community Right-to-Know Act | 
| ERA | Environmental Resource Associates | 
| ELAP | Environmental Laboratory Accreditation Program | 
| FAA | Flame Atomic Absorption Spectrophotometry | 
| FDA | Food & Drug Administration | 
| FIA | Flow Injection Analysis | 
| FID | Flame Ionization Detector | 
| FIFRA | Federal Insecticide, Fungicide & Rodenticide Act | 
| FR | Federal Register | 
| GAO | General Accounting Office | 
| GC | Gas Chromatography | 
| GC/MS | Gas Chromatography/Mass Spectrometry | 
| GFAA | Graphite Furnace Atomic Absorption Spectrometry | 
| HECD/ELCE | Hall Electrolytic Conductivity Detector | 
| HP | Hewlett-Packard (mfg. GC instruments) | 
| HPLC | High Pressure Liquid Chromatography | 
| IC | Ion Chromatography | 
| ICB | Initial Calibration Blank sample | 
| ICP-AES | Inductively Coupled Plasma Atomic Emission Spectrometry (aka ICPAES) | 
| ICP-MS | Inductively Coupled Plasma Mass Spectrometry | 
| ICV | Initial Calibration Verification sample | 
| IFB | Invitation for Bid | 
| IR | Infrared Spectrophotometer | 
| LCS | Laboratory Control Sample | 
| LIMS | Laboratory Information Management System | 
| LUFT | Leaking Underground Fuel Tank | 
| MB | Method Blank | 
| M | Modified | 
| MCL | Maximum Contaminant Level is the highest permissible concentration of a substance allowed in drinking water as established by the USEPA. | 
| MDL | Method Detection Limit | 
| MPN | Most Probable Number | 
| MRL | Method Reporting Limit | 
| MS | Matrix Spike | 
| MUR | Methods Update Rule | 
| NA | Not Applicable | 
| NAN | Not Analyzed | 
| NAS | National Academy of Sciences | 
| NC | Not Calculated | 
| NCASI | National Council for Air and Stream Improvement (for the paper industry) | 
| NCI | National Cancer Institute | 
| ND | Not Detected (at or above MRL) | 
| NIH | National Institute of Health | 
| NIOSH | National Institute for Occupational Safety and Health | 
| NIST | National Institute of Standards and Technology | 
| NPD | Nitrogen Phosphorus Detector | 
| NPDES | National Pollutant Discharge Elimination System | 
| NSF | National Science Foundation | 
| NTIS | National Technical Information System | 
| NTP | National Toxicology Program | 
| ORB | Original Record Book (aka raw data books) | 
| OSHA | Occupational Safety and Health Administration | 
| PCBs | Polychlorinated Biphenyls | 
| PE | Performance Evaluation sample | 
| PID | Photoionization Dectector | 
| PQL | Practical Quantitation Limit | 
| PSE | Pressurized Solvent Extraction | 
| QA | Quality Assurance | 
| QC | Quality Control | 
| RAS | Routine Analytical Services (contracts through USEPA) | 
| RCRA | Resource Conservation and Recovery Act | 
| RFP | Request for Proposal | 
| RPD | Relative Percent Difference | 
| SAS | Special Analytical Services (contracts through USEPA) | 
| SIE | Selective Ion Electrode | 
| SIM | Selected Ion Monitoring | 
| SMO | Sample Management Office (aka Sample Receiving) | 
| SOC | Semi-Volatile Organic Compounds | 
| SOQ | Statement of Qualifications | 
| SOW | Statement of Work | 
| SVOAs | Semi-Volatile Organic Analytes | 
| SVOCs | Semi-Volatile Organic Compounds | 
| SW-846 | Test Methods for Evaluating Solid Waste, Physical/Chemical Methods | 
| TIC | Tentatively Identified Compound | 
| TOC | Total Organic Carbon (test to determine organic content) | 
| TOX | Total Organic Halides (test to determine organic halide content) | 
| TPH | Total Petroleum Hydrocarbons | 
| tr | Trace level in the concentration of an analyte that is less than the PQL but greater than or equal to the MDL | 
| TSCA | Toxic Substances Control Act | 
| TSS | Total Suspended Solids | 
| UST | Underground Storage Tank | 
| UV | Ultraviolet Spectrophotometer | 
| VOA | Volatile Organic Analyte | 
| VOC | Volatile Organic Compounds | 
| WP | Water Pollution | 
| WS | Water Supply | 
| UNITS | |
| mg/kg | Milligrams per Kilogram (same as ppm) | 
| mg/L | Milligrams per Liter (same as ppm) | 
| ug/L | Micrograms per liter (same as ppb) | 
| ppb | Parts Per Billion | 
| ppm | Parts Per Million |