Alabama-Tennessee Natural Gas Company

Second Revised Volume No. 1

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Effective Date: 09/01/1993, Docket: RS92- 27-003, Status: Effective

Original Sheet No. 72 Original Sheet No. 72 : Superseded

GENERAL TERMS AND CONDITIONS (Continued)

pressure of thirty-three hundredths (.33) pounds per

square inch above an assumed atmospheric pressure of

fourteen and four tenths (14.4) pounds per square inch

(fourteen and seventy-three hundredths (14.73) pounds per

square inch absolute).

1.9 The term "Mcf" shall mean 1,000 cubic feet of gas.

1.10 The term "British thermal unit" or "Btu" shall mean the

amount of heat required to raise the temperature of one

pound of water 1 degree Fahrenheit at 60 degrees

Fahrenheit.

1.11 The term "dekatherm" or "dth", shall mean the quantity of

heat energy which is 1,000,000 British thermal units.

1.12 The term "total heating value", when applied to a cubic

foot of gas, means the number of British thermal units

produced by the complete combustion with air, at a constant

pressure, of one anhydrous (dry) cubic foot of gas at a

pressure of 14.73 psia and a temperature of 60 degrees

Fahrenheit when the products of combustion are cooled to

the initial temperature of the gas and air, and when the

water formed by combustion is condensed to the liquid

state.

1.13 The term "load factor" for any given period of time shall

mean the percentage obtained by dividing the amount of the

average daily dth delivery of gas during said period by the

contracted demand during said period.

1.14 The term "contract demand", shall mean the quantity of

natural gas specified in such contract which Transporter

obligates itself to be ready to transport each billing day

on behalf of Shipper, and shall equal the sum of the MDQs

at all Primary Delivery Points under the contract.

1.15 The term "Maximum Daily Quantity," or "MDQ" where used

herein or in a gas transportation contract shall mean the

maximum daily quantity of natural gas that Transporter

shall be obligated to deliver to Shipper at a particular

Delivery Point each billing day or the maximum daily

quantity of gas, exclusive of fuel and losses that