Glossary Terms

See Methyl Tertiary-Butyl Ether

See most probable number.

The term used to indicate the number of microorganisms which, according to statistical theory, would be most likely to produce the results observed in certain bacteriological […]

The smallest particle of a substance which will still retain the essential composition and properties of that substance.

The molecular weight of a substance, usually expressed in grams.

Acidity due to the presence of strong inorganic acids such hydrochloric, sulfuric and nitric acids, as opposed to weak acidity due to carbonic acid or acetic […]

A term applied to inorganic substances such as rocks and similar matter found in the earth strata, as opposed to organic substances such as plant and […]

A unit of length equal to 10-3 microns correctly called a nanometer (nm).

A measure of concentration of a dissolved substance. A concentration of one mg/L means that one milligram of a substance is dissolved in each liter of […]