5.2.3Process Safety Reporting

A Loss of Primary Containment (LOPC) is defined as an unplanned or uncontrolled release of any material from primary containment, including non-toxic and non-flammable materials (e.g. steam, hot condensate, nitrogen, compressed CO2 or compressed air).

A Process Safety Event (PSE) is defined as a LOPC from a process that meets the Tier 1 or Tier 2 definitions within API RP 754.

LOPC events are reported in the Company’s Single Reporting System as highlighted in section 5.2.1. This system includes a built-in calculation tool to assist the user in determining the release quantity of LOPC events. All LOPCs are analysed to identify those considered to be PSEs as per API RP 754. Process Safety KPIs used by the Company include the number of Tier 1 and the number of Tier 2 PSEs.