Cove Point LNG Limited Partnership
Second Revised Volume No. 1
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Effective Date: 06/01/2003, Docket: CP01- 76-003, Status: Effective
Original Sheet No. 124B Original Sheet No. 124B : Effective
GENERAL TERMS AND CONDITIONS
8. NATURAL GAS QUALITY (Continued)
(i) (iii) Buyer shall send or cause to be sent to Operator a certified copy of the
gauging standards, in metric units approved by the United States Bureau of
Standards in Washington, D.C., as well as correction charts (list, trim,
contractions, etc.), for each tank of each of Buyer's LNG tankers. Such
standards and charts shall be used throughout the term of the Service
Agreement, except in the case of physical change in the tanks, in which case
new standards and charts shall be sent to Operator. LNG measuring devices
shall be approved by both Operator and Buyer. Each tank shall be equipped with
two level-measuring devices of different types.
(iv) The density of the LNG shall be calculated using the revised Klosek and
(v) The temperature of the LNG contained in the tanks of any Buyer's LNG tankers
shall be determined by using the arithmetic average of the temperature
indicated by special thermo-couples or resistance thermometers spaced at
various locations from top to bottom of each tank with an accuracy or plus or
minus two-tenths of a degree centigrade. Such temperatures shall be either
logged or printed.
(vi) Samples of the LNG shall be taken or caused to be taken by Buyer with a
frequency adequate to assure a representative analysis of the LNG being
unloaded, at a suitable point. The sampling device shall be such as to permit
the total and continuous vaporization of a quantity of LNG sufficient for the
taking of a gaseous sample representative for the LNG then being uploaded.
Such samples shall be analyzed by Buyer by means of a suitable gas
chromatograph. An analysis or the average of such analyses shall determine the
molecular composition of the LNG. A calibration of the chromatograph used
shall be performed before the analysis of the samples taken from each
unloading. Representatives of Operator and Buyer shall have the right to be
present at such calibrations, but the absence of a representative shall not
prohibit any calibration. Such calibration shall be effected with the aid of a
gaseous mixture having a known composition closely similar to the vaporized LNG
(vii) The Gross Heating Value ("GHV") of LNG shall be calculated on the basis of its
molecular weights and the Thermies per kilogram of each of its components. The
values of physical constants to be used for such calculations shall conform to
those contained in the most current publications of the National Bureau of
Standards of the United States, or a successor agency.
(viii) The quantity of dth unloaded from Buyer's LNG tanker(s) shall be calculated on
the basis of the following formula:
Q = V x M x Pc
Q = the number of dth unloaded
V = the volume of LNG unloaded, in m3, as determined in accordance with
Section 8(c)(ii) of the GT&C.
M = the density of the LNG in kg/m3 calculated in accordance with
Section 8(c)(iv) of the GT&C.
Pc = the GHV of LNG per unit of mass, in Thermies/kg calculated in
accordance with Section 8(c)(vii) of the GT&C.