Glossary - T

A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | Q | R | S | T | U | V | W | Y

"Target Compound" means any parameter for which quality control data are listed in the method.

"Technique" means the type of instrumental or manual procedure used to perform an analysis. For example, the potentiometric ion selective electrode determination of fluoride is one of four techniques used for the determination of fluoride in drinking water. There are three method references approved by USEPA that use this technique.

"Temporary approval" means either of the following:

1. A temporary approval for a laboratory to continue analyzing regulatory samples pending an on-site audit pursuant to N.J.A.C. 7:18-2.6(a)6; or
2. A temporary approval for a laboratory to continue analyzing regulatory samples for one or more categories in the solid/hazardous waste programs, pursuant to N.J.A.C. 7:18-2.6(c).

"Total length" means, for Acute Toxicity Testing, the straight-line measurement from the tip of the snout of a fish to the extreme tip of the caudal fin.

"Toxicity Test" means, for Acute Toxicity Testing, a procedure in which the responses of aquatic organisms are used to detect or measure the presence or effect of one or more toxic substances or wastes, alone or in combination.

"Transient non-community water system" means a non-community water system that does not regularly serve at least 25 of the same persons over 6 months per year.

"Transport Water" means, for Acute Toxicity Testing, the fresh or salt water used to transport test organisms from an outside supplier's facility to the certified environmental laboratory; usually it is the water used by the supplier for culturing test organisms.

"Trip blanks" means a set of sample containers filled with analyte?free water that originates in the environmental laboratory, travels to the field site and remains unopened. This blank checks for potential contamination sources in sample container preparation, method blank water, and sample transport.