Tuscarora Gas Transmission Company

Original Volume No. 1

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Effective Date: 08/01/1999, Docket: RP99-354-001, Status: Effective

Original Sheet No. 33A Original Sheet No. 33A : Effective






2.15 Dekatherm or Dth. The standard quantity for nominations,

confirmations and scheduling is dekatherms per gas day in the United

States, gigajoules per gas day in Canada and gigacalories per gas

day in Mexico. (For reference 1 dekatherm = 1,000,000 Btu's; 1

gigajoule = 1,000,000,000 joules; and 1 gigacalorie = 1,000,000,000

calories.) For commercial purposes, the standard conversion factor

between dekatherms and gigajoules is 1.055056 gigajoules per

dekatherm and between dekatherms and gigacalories is 0.251996

gigacalories per dekatherm. The standard Btu is the International

Btu, which is also called Btu(IT); the standard joule is the joule

specified in the SI system of units. See Footnote 1













































Footnote 1 - The International Btu is specified for use in

the gas measurement standards of the American Gas Association,

the American Petroleum Institute, the Gas Processors

Association and the American Society for Testing Materials. For

non-commercial purposes, these associations note that the exact

conversion factor is 1.05505585262 Gigajoules per Dekatherm.