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Glossary

 T-BILLS-TREASURY BILLS
Short term obligations of the U.S. government.
 TANGIBLE ASSET
Real property such as buildings and machinery. Trademarks, goodwill, or accounts receivable are not considered tangible assets.
 TBA
Tires, batteries and accessories.
 Tedlar bags
gas-tight bags constructed of non-reactive material (Tedlar) for the collection and transport of gas/vapor samples.
 TERM
A loan’s maturity, stated in months or years.
 TERM LOAN
Loan, given in one lump sum, is provided at the closing. Repayment is monthly.
 Terminal
A physical storage facility for petroleum products, typically supplied through a pipeline from a refinery, where jobbers/wholesalers purchase and obtain gasoline at the rack price.
 terminal electron acceptor (TEA)
a compound or molecule that accepts an electron (is reduced) during metabolism (oxidation) of a carbon source. Under aerobic conditions molecular oxygen is the terminal electron acceptor. Under anaerobic conditions a variety of terminal electron acceptors may be used. In order of decreasing redox potential, these TEAs include nitrate, manganic manganese, ferric iron, sulfate, and carbon dioxide. Microorganisms preferentially utilize electron acceptors that provide the maximum free energy during respiration. Of the common terminal electron acceptors listed above, oxygen has the highest redox potential and provides the most free energy during electron transfer.
 thermal desorber
describes the primary treatment unit that heats petroleum-contaminated materials and desorbs the organic materials into a purge gas or off-gas.
 thermal desorption system
refers to a thermal desorber and associated systems for handling materials and treated soils and treating offgases and residuals.
 Throughput
Refers to the sale of gasoline or other petroleum products, and is usually measure in gallons.
 total petroleum hydrocarbons (TPH)
a measure of the concentration or mass of petroleum hydrocarbon constituents present in a given amount of air, soil, or water. The term total is a misnomer, in that few, if any, of the procedures for quantifying hydrocarbons are capable of measuring all fractions of petroleum hydrocarbons present in the sample. Volatile hydrocarbons are usually lost in the process and not quantified. Additionally, some non-petroleum hydrocarbons may be included in the analysis.
 total recoverable petroleum hydrocarbons (TRPH)
an EPA method (418.1) for measuring total petroleum hydrocarbons in samples of soil or water. Hydrocarbons are extracted from the sample using a chlorofluorocarbon solvent (typically Freon-113) and quantified by infrared spectrophotometry. The method specifies that the extract be passed through silica gel to remove the non-petroleum fraction of the hydrocarbons.
 TRAC Lease
A tax-oriented lease of motor vehicles or trailers that contains a terminal rental adjustment clause and otherwise complies with the requirements of a guideline lease.
 Traditional operator
A convenience store operator whose roots are in convenience retailing rather than petroleum products. Gasoline operations were either de-emphasized or non-existent when the company was founded.
 travel time
the time it takes a contaminant to travel from the source to a particular point downgradient.
 tripolyphosphates
Salts with P(3)O(10)[-5 charge] anion. Most common is sodium tripolyphosphate [Na(5)P(3)O(10)].
 True Lease/Tax Lease
A tax-oriented lease, in which, for IRS purposes, the lessor qualifies for the tax benefits of ownership and the lessee is allowed to claim the entire amount of the lease rental as a tax deduction.
 turbine wheel
a rotor designed to convert fluid energy into rotational energy. Hydraulic turbines are used to extract energy from water as the water velocity increases due to a change in head or kinetic energy at the expense of the potential energy as the water flows from a higher elevation to a lower elevation. The fluid velocity tangential component contributes to the rotation of the rotor in a turbomachine.
 Turnaround Time
The time it takes to make a credit decision and inform the lessee after receiving the lease application.
 Two-Party Lessor
A captive leasing company, or a lessor, that writes leases involving two parties: 1) the consolidated parent and/or captive leasing subsidiary and 2) the lessee or end-user of the equipment.
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