Texas Gas Transmission Corporation

First Revised Volume No. 2-A

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Effective Date: 11/01/1990, Docket: RP90-192-000, Status: Effective

Original Sheet No. 76 Original Sheet No. 76 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

(b) For deliveries or receipts hereunder the

average absolute atmospheric (barometric)

pressure shall be assumed to be fourteen and

seven-tenths (14.7) pounds per square inch for

gas delivered south of 32o Latitude, American

Continent, and fourteen and four-tenths (14.4)

pounds per square inch for gas delivered north

of 32o Latitude, American Continent;

(c) The average unit total heating value of the

gas shall, at Transporter's option, be deter-

mined at each point of measurement by: (1)

use of a spot sample taken during each month

to be analyzed on a gas chromatograph, (2)

use of a sample taken by a continuous sampler

to be analyzed on a gas chromatograph, (3)

use of an on-line gas chromatograph or (4)

use of a calorimeter, mechanical or otherwise.

If chromatographic analysis is used, the unit

total heating value shall be calculated using

the compound values contained in the American

Gas Association Gas Measurement Committee

Report No. 3. September, 1985 (ANSI/API 2530

approval May, 1985), or any revision thereof;

(d) The temperature of the gas for any day shall

be determined by taking the arithmetic average

of the hourly temperature readings, or by

transmitting the temperature directly to a

flow computer from a thermometer so installed

as to properly sense the temperature of the

gas passing through the meters; provided, how-

ever, that where quantities of gas metered

will not be materially affected by doing so,

the temperature of the gas for any day may be

determined by any other recognized method

which may be practical in the circumstances;

and