Enbridge Pipelines (Midla) Inc.

Second Revised Volume No. 2

 Contents / Previous / Next / Main Tariff Index

Effective Date: 10/01/2001, Docket: GT01- 30-000, Status: Effective

Original Sheet No. 94 Original Sheet No. 94 : Effective

RATE SCHEDULE X-9

(Continued)

(c) not contain more than 3% by volume of carbon dioxide or of

oxygen;

(d) not contain more than 7 pounds of water per 1,000 Mcf;

(e) have a temperature of not more than 120oF.; and

(f) have a gross heating value of not less than 950 Btu per cubic

foot, measured at an absolute pressure of 14.73 pounds per square

inch at sixty (60) degrees Fahrenheit and saturated with water

vapor.

The sulphur content and hydrogen sulphide content shall be determined by

approved standard methods generally in use in the natural gas industry.

The hydrogen content shall be determined by the method prescribed by

the Natural Gasoline Processors Association of America in NGPA Publication

2261-72 or ASTM publication D 194564 (1968) or any revisions thereof, or by

such other method as shall be mutually agreed upon.

The Btu content shall be determined by joint tests made by taking

samples of the gas and determining the Btu content by means of a method or

methods agreed upon. If a recording calorimeter is installed, the monthly

average of the daily readings obtained shall be used. Btu values shall be

corrected to 14.73 pounds per square inch absolute at 60oF. saturated with

water vapor.

The water vapor content shall be determined at such intervals as shall

be found necessary in practice, by the use of dew point apparatus approved

by the Bureau of Mines and utilizing curves for "Water Vapor Content of

Compressed Natural Gas" comprising Figure 41 to Bureau of Mines, U. S.

Department of the Interior, Monograph 8 "Gas Hydrates and Their Relation to

the Operation of Natural-Gas Pipe Lines," or by such other curve or method

as shall be mutually agreed upon.