A crane with the boom on a tower, used for hoisting materials during high-rise construction.
Townhouse
A dwelling unit, generally having two or more floors plus a garage and is attached to other similar units via party walls. Such dwellings are typically found in condominiums and cooperatives or as part of a planned unit development.
Township
Six-mile by six-mile square area of land delineated by Government Rectangular Survey.
Township lines
Lines determined by a government rectangular survey laying out a standard six-mile square area of land.
Toxic
Poisonous.
Toxicant
A substance that can cause tissue damage or otherwise affect organs or systems within the body.
Toxicity test
Test to determine the toxicity of a chemical or an effluent using living organisms. It measures the degree of response of an exposed test organism to a specified chemical or effluent.
Trace cloth
A soft cloth used in certain wood finishing processes.
Trace elements
Chemical elements present in exceedingly small quantities. (PPM.
Tracer gas
An inert compound that is a rare constituent of indoor air which is released into building air and monitored qualitatively and/or quantitatively to characterize airflow characteristics to determine air pathways, infiltration, and ventilation efficiency measurements.
