Standards Development

Scope

This document defines a risk-based program for determining protective system requirements for petroleum, petrochemical and natural gas industry fired equipment including lower carbon energy. The process applies to new or existing fired equipment.

For modifications to existing fired equipment that has been designed in accordance with this standard, the scope may be limited to changes.

This document applies to:

— hazards that have potential to produce harm,

— engineered and administrative forms of risk reduction.

NOTE 1 See Figure 1 for a graphical representation of the hierarchy of risk reduction.

NOTE 2 For guidance on elimination and substitution of hazards, see ISO 45001:2018 - Occupational health and safety management systems — Requirements with guidance for use, clause 8.1.2 Eliminating hazards and reducing OH&S risk.

See draft for Figure 1 — Hierarchy of risk reduction & ISO 5133 Scope

NOTE 3 Example of hierarchy of risk reduction related to natural draft gas-fired process fired heaters.

— Elimination - eliminate the gas-fired process heater combustion risk by replacing with electric heating.

— Substitution - refinery fuel gas replaced with constant calorific value natural gas, for example, from a utility pipeline.

— Engineered function - install mass flow meter that compensates for composition change in refinery fuel gas.

— Administrative function – maintain low occupancy around natural draft gas fired process fired heater.

This standard excludes assessment of environmental impact, business impact or loss of reputation.

This standard excludes risk reductions in the forms of elimination, substitution, and personal protective equipment.

NOTE See Figure 1 for a graphical representation of the hierarchy of risk reduction.

This standard excludes commercial fired equipment used for food preparation, space heating, small potable water heaters, and other non-process applications such as small heaters used in maintenance applications.