GENERAL TERMS AND CONDITIONS OF SERVICE
(Continued)
2. QUALITY OF GAS (Continued)
2.1 Quality Standards: (Continued)
(b) Gas Quality: The gas: (Continued)
(viii) Shall not exceed one hundred and five degrees (105 o)
nor less than fifty degrees (50 o) Fahrenheit in
temperature at the point of measurement.
(ix) Shall be as free of oxygen as it can be kept through
the exercise of all reasonable precautions, and
shall not in any event contain more than two-tenths
of one percent (0.2%) by volume of oxygen.
(x) Shall not contain more than three-tenths (0.3) grain
of mercaptan sulfur, measured as sulfur, per one
hundred (100) standard cubic feet.
(c) Interchangeability: The gas shall have a minimum Wobbe
number of one thousand two hundred seventy nine (1279) and
shall not have a maximum Wobbe number greater than one
thousand three hundred eighty five (1385).
2.2 Quality Tests:
(a) The quality specifications of the gas received by NBP
hereunder shall be determined by tests which NBP shall cause
to be made near its interconnect with El Paso Natural Gas
Company, Ehrenberg, Arizona or such other locations on NBP's
system if required accordance with this Paragraph 2.2.
(b) The Gross Heating Value of gas delivered hereunder shall be
determined from read-outs of continuously operating
measuring instruments. The method shall consist of one or
more of the following:
(i) calorimeter
(ii) gas chromatograph
(iii)any other method mutually agreed upon by the parties.
(Continued)
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