Kinder Morgan Illinois Pipeline LLC

Original Volume No. 1

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Effective Date: 12/01/2007, Docket: RP08- 34-000, Status: Effective

Original Sheet No. 207 Original Sheet No. 207 : Effective

GENERAL TERMS AND CONDITIONS

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17. MEASUREMENT

17.1 UNIT OF MEASUREMENT AND METERING BASE

The volumetric measurement base shall be one (1) cubic

foot of gas at a pressure base of fourteen and seventy-three

hundredths pounds per square inch absolute (14.73 psia), at a

temperature base of sixty degrees Fahrenheit (60 F.), and without

adjustment for water vapor.

17.2 ATMOSPHERIC PRESSURE

For the purpose of measurement, calculations, and meter

calibration, the atmospheric pressure shall be based on the actual

altitude of each point of measurement irrespective of variations in

natural atmospheric pressure from time to time.

17.3 TEMPERATURE

The temperature of the gas shall be determined at the

points of measurement by means of a continuous electronic transducer

input to a EFM of standard manufacture selected by KMIP in the

exercise of its reasonable judgment to be installed in accordance

with the recommendations contained in ANSI/API 2530 First Edition

(Orifice Metering of Natural Gas). Hourly average temperature will

be computed as a running average of data determined during each

computer scan.

17.4 DETERMINATION OF HEATING VALUE AND SPECIFIC GRAVITY

The Heating Value and specific gravity of the gas will

be determined by a chromatograph. In the event a continuous gas

sampling device is used, intervals mutually agreed upon should not

be less than once every Month. The readings from an online

chromatograph, if installed, shall input continuously into the EFM

for volume calculations. In the event a continuous gas sampler is

installed, then the Heating Value and specific gravity shall be

determined in the laboratory by chromatograph. Such determinations

shall be considered as the Heating Value and specific gravity of all

gas delivered during the applicable period of sampling. All Heating

Value and specific gravity determinations made with a chromatograph

shall use physical gas constants for gas compounds as outlined in

GPA Standard 2145-00 Rev 2, Table of Physical Constants of Paraffin

Hydrocarbons and Other Components of Natural Gas and any subsequent

amendments or revisions which KMIP may adopt in exercise of its