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Minimum Implementation Criteria cont'd - doe-hdbk-1101-20040040
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Process Safety Management for Highly Hazardous Chemicals - index
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Questions cont'd - doe-hdbk-1101-20040042


DOE-HDBK-1101-2004
Thermal and chemical stability data, such as flammability limits, flash point, and auto
ignition temperature.
Hazardous effects of inadvertent mixing of different materials.
Information about process technology must include the following.
Block flow diagrams or simplified process flow diagrams.
Process chemistry, such as flow rates, chemical equations, chemistry of intermediates,
utility systems, and exothermic/endothermic reactions.
Maximum intended inventory for all storage tanks, reactors, and other vessels.
Safe upper and lower limits for process parameters, such as flow rates, pressures,
temperatures, levels, phases, and composition, for all modes of operation in all major
piping segments.
 Consequences of deviations outside safe operating limits.
Information about process equipment must include the following.
Materials of construction and basis for selection, such as material compatibility or
corrosion resistance.
Electrical area classification, based on flammable materials located near the process.
Relief system design and design basis.
Ventilation system design, including airflow, and psychometric and equipment sizing
calculations.
Design codes and standards.
Material and energy balances for processes. The balances must
show that mass flows and heat transfers sum properly.
Safety systems, such as control interlocks, depressurization, containment and disposal,
and toxic/flammable material detection systems.
Piping and instrumentation diagrams.
Questions
42.
Must all PSI be kept in one place? Can it be spread out in a variety of documents
and locations?
All PSI does not have to be in one document or in one place but should be accessible to
all employees who need it to safely perform their jobs. DOE contractors may choose to
store their PSI in a central location. However, they should ensure that this level of
document control does not hamper worker access to up-to-date PSI. DOE contractors
may consider developing a PSI road map to help workers find necessary information
easily.
43.
PSI is required for ventilation system design, safety systems, and mixing of
materials that could foreseeably occur. What is meant by these terms?
25


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