(D) Safe upper and lower limits for such items as temperatures, pressures,
flows or compositions; and,
(E) An evaluation of the consequences of deviations, including those
affecting the safety and health of employees.
(ii) Where the original technical information no longer exists, such information
may be developed in conjunction with the process hazard analysis in
sufficient detail to support the analysis.
(3) Information pertaining to the equipment in the process.
(i) Information pertaining to the equipment in the process shall include:
(A) Materials of construction;
(B) Piping and instrument diagrams (P&ID's);
(C) Electrical classification;
(D) Relief system design and design basis;
(E) Ventilation system design;
(F) Design codes and standards employed;
(G) Material and energy balances for processes; and
(H) Safety systems (e.g. interlocks, detection or suppression
(ii) The employer shall document that equipment complies with recognized and
generally accepted good engineering practices.
(iii) For existing equipment designed and constructed in accordance with
codes, standards, or practices that are no longer in general use, the
employer shall determine and document that the equipment is designed,
maintained, inspected, tested, and operating in a safe manner.
(e) Process Hazard Analysis.
(1) The employer shall perform an initial process hazard analysis (hazard
evaluation) on processes covered by this standard. The process hazard
analysis shall be appropriate to the complexity of the process and shall