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PDF Printable Glossary (168 KB)

A glossary of Triad-related technical terms.

Select a glossary term from the list below, or select a letter to see terms starting with that letter. You may also use the Glossary search box at the top of the page, or print out the entire glossary by clicking the "Printable Glossary" link above.

A | B | C | D | E | F | G | H | I | J | L | M | O | P | Q | R | S | T | U | V | W
Sample (or Subsample) Support
Sample Representativeness
Sampling Design Error
Sampling Error or Selection Error (SE)
Sampling Uncertainty
Sampling Unit
Sampling Variability
Screening Analytical Method
Screening Quality Data
Selectivity (in analysis)
Semi-Quantitative Results
Sensitivity (in analytical chemistry)
Short-range Fluctuation Error (CE1)
Site Screening
Specific (in analysis)
Standard Analytical Method
Standard Operating Procedure (SOP)
Statistical Power
Statistical Sampling
Survey Instrument
Systematic Project Planning

Glossary Purpose and Sources

The Glossary serves 2 roles: 1) providing clarity on how terms are defined for use within the Triad Resource Center; and 2) acknowledging where terminology may be ambiguous or conflicting due in usage by the environmental cleanup community. Where available and applicable, definitions or descriptions developed by consensus or professional organizations are preferred by the Triad Steering Committee and are referenced in this Glossary. Access to the sources quoted in this glossary is indicated in the table below:

IUPAC Compendium of Chemical Terminology, 2nd Edition, 1997

NELAC Program Policy and Structure; Appendix A; June 5, 2003

USEPA QA/G-1 Nov 02 EPA/240/R-02/008

USEPA QA/G-4 Aug 00 EPA/600/R-96/055

USEPA QA/G-5 Dec 02 EPA/240/R-02/009

USEPA QA/G-5S Dec 02 EPA/240/R-02/005

USEPA QA/G-8 Nov 02

USEPA SW-846 Jul 1992 Chapter 1, Section 5.0

USEPA Environmental Monitoring and Assessment Program (EMAP) QA Glossary

USEPA Guidance for Obtaining Representative Laboratory Analytical Subsamples from Particulate Laboratory Samples EPA/600/R-03/027; Nov 2003

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