Sea Robin Pipeline Company, LLC

Second Revised Volume No. 1

Effective Date: 12/31/2004, Docket: RP05- 87-000, Status: Effective

Original Sheet No. 172 Original Sheet No. 172 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

13. MEASUREMENT (Continued)

13.3 Determination of Heating Value

At Sea Robin's option, the heating value of the gas shall be

determined by calorimeter, chromatograph, or other device of

standard manufacture and shall be either (1) recorded using

charts, digital recorders, etc., in which case an arithmetic

average (to be determined during the period of time during

which flow was occurring at the location of the gross heating

value recorder) of such record shall be the gross heating value

of the gas being measured, or (2) entered as an input to

electronic flow computers in which case the gross heating value

being measured will be used in the computation of the BTU

content of the gas. If a gross heating value measuring device

is not installed or available at an appropriate location, then

the gross heating value shall be determined by a mutually

agreeable method.

13.4 Determination of Flowing Temperature

The flowing temperature of the gas shall be determined for the

purpose of measured volume correction. Volume shall be

corrected for each degree of variation in the flowing

temperature from 60 degrees (60 ) Fahrenheit. The flowing

temperature will be measured by RTD's, thermocouples,

thermometers, etc. and shall be either (1) recorded using

charts, digital recorders, etc., in which case the temperature

at which gas was measured for the period of such record shall

be the arithmetic average of the record during the period of

time during which gas was flowing, or (2) used for on-site flow

computations in electronic flow computers in which case the

instantaneous measurement of temperature will be used in such

computations. Where no temperature measuring device is

installed, the temperature of the gas shall be assumed to be 60

degrees (60 ) Fahrenheit.

13.5 Determination of Specific Gravity

The specific gravity of the gas flowing through the meter or

meters shall be determined at an appropriate location by the

use of a recording gravitometer furnished and installed by the