Crossroads Pipeline Company
Original Volume No. 1
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Effective Date: 10/02/1995, Docket: CP94-342-001, Status: Effective
Original Sheet No. 31 Original Sheet No. 31 : Effective
4. MEASUREMENTS
4.1 Metering: The gas shall be metered by one or more orifice or
displacement type meters, at the discretion of Crossroads. When
orifice meters are used, they shall he installed and maintained,
and volumes shall be measured in accordance with the methods
prescribed in "Orifice Metering of Natural Gas," Gas Measurement
Committee Report No. 3 of the American Gas Association, including
the Appendix thereto, as published September 1959, or any
subsequent revision thereof acceptable to both parties. When
displacement meters are used, the number of Mcf delivered
hereunder shall be computed by including factors for pressure,
temperature and deviation from Boyle's law.
4.2 Deviation from Ideal Gas Laws: Correction shall be made for
deviation of the gas from Boyle's Law at the pressure and
temperature at which the gas is metered. To determine the factors
for such correction, a quantitative analysis of the gas shall be
agreed upon by both parties or by computations made in
accordance with Gas Measurement Committee Report No. 3 of the
American Gas Association and any modifications and amendments
thereof applied in a practical manner.
4.3 Specific Gravity: The specific gravity of gas flowing through the
orifice meters shall be determined by means of a recording
gravitometer located at the delivering party's measuring station
or at any other point on said party's system where there will be
no commingling thereafter of gas with that delivered to the
receiving party, and the arithmetic average specific gravity each
day at such point shall be used in computing deliveries of gas
during the day at such points. Where displacement meters are
installed and where the quantities of gas metered will not be
materially affected by doing so, the specific gravity of the gas
for any day may be determined by any other recognized method
which may be practicable in the circumstances.
4.4 Flowing Temperatures: The flowing temperature of the gas being
metered shall be determined by means of a recording thermometer
of a type acceptable to both parties, installed and maintained in
accordance with the specifications set forth in said Gas
Measurement Committee Report No. 3. The arithmetical average of
readings each day for time that gas is flowing shall be deemed the
gas temperature and used in computing the volumes of gas metered
during such day.
4.5 Measurement: The Unit of Measurement for gas delivered or
redelivered hereunder shall be one thousand (1,000) cubic feet
(Mcf) of gas at a base temperature of sixty degrees (60ø)
Fahrenheit and at a base pressure of fourteen and seventy-three
hundredths pounds per square inch absolute (14.73 p.s.i.a).