Discovery Gas Transmission LLC

Original Volume No. 1

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Effective Date: 11/10/1997, Docket: CP96-712-002, Status: Effective

Original Sheet No. 173 Original Sheet No. 173 : Effective

14. MEASUREMENT

14.1 PROCEDURES - All metering and testing equipment must be

installed, maintained, and calibrated in accordance with

the specifications and procedures of API Manual of

Petroleum Measurement Standards, Chapter 14 - Section 3,

Latest Edition and Chapter 21 - Section 1, Latest

Edition.

14.2 UNIT OF VOLUMETRIC MEASUREMENT - The unit of volume for

all purposes hereunder shall be one standard cubic foot

(1 SCF) as defined in Section 1 of the General Terms and

Conditions. Correction for the deviation of the Gas from

Boyle's Law at the pressures, temperatures and relative

densities under which the Gas is received or delivered

hereunder will be according to API Manual of Petroleum

Measurement Standards Chapter 14 - Section 2/AGA Report

No. 8.

14.3 ATMOSPHERIC PRESSURE - Atmospheric pressure will be

assumed to be fourteen and seven-tenths pounds per square

inch absolute (14.7 PSIA) regardless of the actual

elevation or location of the Receipt or Delivery Point(s)

above sea level or variations of the actual atmospheric

pressure at which the Gas is measured.

14.4 RELATIVE DENSITY (SPECIFIC GRAVITY) - Relative density

will be determined by chromatographic analysis of samples

collected by means of a continuous sampling device, by an

on-line gas chromatograph or by other industry-accepted

instrument that is mutually agreed upon.

14.5 HEATING VALUE - Heating value will be determined by

chromatographic analysis of samples collected by means of

a continuous sampling device, by an on-line gas

chromatograph or by other industry-accepted instrument

that is mutually agreed upon.