Units, Terms and Definitions

IEPA Illinois Environmental Protection Agency
AIHA American Industrial Hygiene Association
NBS National Bureau of Standards
SM Standard Methods for the Examination of Water and Waste Water
STM American Standards for Testing and Materials
SW Solid Waste
USEPA United States Environmental Protection Agency
GC Gas Chromatography
GC/MS Gas Chromatography / Mass Spectrometer
AA Atomic Absorption Spectroscopy
GFAA Graphite Furnace Atomic Absorption Spectroscopy
ICP Iductively Coupled Plasma (Atomic Emission) Spectroscopy
TCLP Toxicity Characteristic Leaching Procedure
TPH Total Petroleum Hydrocarbons
TOX Total Organic Halogens
TOC Total Organic Carbon
BNA Base, Neutral, Acid Extractable Semivolatiles
PAH Polynuclear Aromatic Hydrocarbons
VOC Volatile Organic Compounds
TKN Total Kjeldahl Nitrogen
BOD Biochemical Oxygen Demand
COD Chemical Oxygen Demand
TPC Total Plate Count
SPLP Synthetic Precipitation Leaching Procedure

MPN Most Probable Number
PPM Parts Per Million (mg/Kg, mg/L)
PPB Parts Per Billion (ug/Kg, ug/L)
PPT Parts Per Trillion (ng/Kg, ng/L)
% Percent
PPM Parts Per Million (mg/Kg, mg/L)
PPB Parts Per Billion (ug/Kg, ug/L)
PPT Parts Per Trillion (ng/Kg, ng/L)