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API RP 750 Document Information:
Title
Management of Process Hazards
American Petroleum Institute
Publication Date:
Jan 1, 1990
Scope:
1.3 Scope
1.3.1 APPLICATIONS
1.3.1.1 This recommended practice is intended for facilities that use,
produce, process, or store
the following substances:
a. Flammable or explosive substances that are present in such quantity
and condition that a sudden,
catastrophic release of more than 5 tons of gas or vapor can occur
over a matter of minutes, based
on credible failure scenarios and the properties of the materials
involved (see Appendixes A and
B).
b. Toxic substances that have a substance hazard index (SHI) greater
than 5000 (see Appendix C) and
that are present in amounts above a threshold quantity.
1.3.1.2 Toxic substances commonly handled by the petroleum industry
that meet the SHI criteria
include hydrogen sulfide (H2S), chlorine (CI2), hydrogen fluoride
(HF), and ammonia (NH3). The
following facilities are examples of those to which this recommended
practice may be applicable,
based on the criteria of 1.3.1.1, Item b:
a. Hydrogen sulfide and sulfur recovery facilities.
b. Chlorine handling and storage facilities.
c. Hydrogen fluoride alkylation and storage facilities.
d. Ammonia storage and refrigeration facilities.
An illustrative list of substances, along with calculated SHI values,
is included in Appendix C as
Table C-1.
1.3.2 APPLICABILITY OF RECOMMENDED PRACTICE
This recommended practice was developed for refineries, petrochemical
operations, and major
processing facilities. The following operations are not within the
scope of this recommended
practice:
a. Distribution, retail, and jobber operations.
b. Liquefied natural gas (LNG) facilities and pipeline and
transportation operations regulated by
the U.S. Department of Transportation (DOT).
c. Oil and gas well drilling, service, and production facilities and
operations covered by the U.S.
Minerals Management Service (MMS).
d. Natural gas processing facilities excluded by Appendix B.
e. Storage of hydrocarbon fuels solely for on-site consumption.
f. Storage of flammable or combustible nonreactive, bulk liquid
materials at atmospheric pressure
without benefit of chilling or refrigeration, and the transfer of
those materials.
Storage facilities for liquefied petroleum gases, including surface
facilities for underground
storage caverns, are within the scope of this recommended practice,
unless specifically excluded by
Item d above.
When measures are taken in accordance with this recommended practice,
such measures should conform
to the most current provisions of any applicable, federal, state, or
local regulations.
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