Dominion Cove Point LNG, LP

Original Volume No. 1

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Effective Date: 08/18/2003, Docket: RP01-217-003, Status: Effective

First Revised Sheet No. 231 First Revised Sheet No. 231 : Effective

Superseding: Original Sheet No. 231

GENERAL TERMS AND CONDITIONS

(Continued)

 

 

 

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

McKinley method.

 

(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

being measured.

 

(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

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where:

Q = the number of dth unloaded

V = the volume of LNG unloaded, in m3, as determined in accordance with

Section 8(i)(ii) of the GT&C.

M = the density of the LNG in kg/m3 calculated in accordance with

Section 8(i)(iv) of the GT&C.

Pc = the GHV of LNG per unit of mass, in Thermies/kg calculated in

accordance with Section 8(i)(vii) of the GT&C.