(a) This Code was prepared by the Special Committee on the
Standardization of Oil Field Boilers, appointed by the Board of
Directors of the American Petroleum Institute
(b) This Committee has adopted complete specifications on
Locomotive Type Boilers (A.P.I. Stds. No.2). The specification is
complete, and covers material, workmanship, sizes and working
pressure. It is urged that this specification be used in purchasing
locomotive type boilers for oil field use. No standards were
adopted on horizontal. return tubular boilers as an analysis showed
that this type boiler was used in oil field work in only one
district, and that its use in that district was diminishing.
(c) The Committee, in preparing this Code, has endeavored to
formulate rules for the installation, operation, and care of the
boilers which will give the most satisfactory operation. The
committee has endeavored to keep in mind, that simplicity,
flexibility, safety, and salvage value are necessary in Oil Field
Boiler Work.
(d) This Code applies to Horizontal Return Tubular and
Locomotive or Firebox Type Boilers.