Williams Natural Gas Company
Second Revised Volume No. 1
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Effective Date: 10/01/1993, Docket: RS92- 12-003, Status: Effective
Original Sheet No. 269 Original Sheet No. 269 : Superseded
GENERAL TERMS AND CONDITIONS
17. MEASUREMENT AND MEASURING EQUIPMENT (Cont'd)
(a) The unit of measurement of gas received and delivered hereunder
shall be one (1) dekatherm (Dth).
(b) Orifice meters shall be constructed in accordance with the
recommendations prescribed in the latest edition of the ANSI/API
2530 measurement standard and any subsequent amendments or
replacements, thereto. Where other types of meters are used,
calculations shall be performed per normally accepted industry
practices, methods or standards.
(c) It is assumed and agreed that the atmospheric pressure generally
is as follows:
Oklahoma & Texas Panhandles 13.2
Kansas Hugoton 13.2
All Other Areas 14.4
(d) The temperature of the gas shall be determined by means of
continuously recording thermometers unless it is mutually agreed
to use a 60 degree Fahrenheit flowing temperature. The average
flowing temperatures, recorded to the nearest one degree
Fahrenheit during each day, shall be deemed the daily gas
temperature and shall be used in computing the daily gas received
or delivered hereunder.
(e) Relative density (specific gravity) determinations for the
purpose of measurement computations shall be made upon initiation
of deliveries hereunder, and as often thereafter as found
necessary in practice, in accordance with an approved method, and
these determinations so made shall be used in calculating the
volume of gas delivered hereunder.