4.9.3Process Safety Reporting
A Loss of Primary Containment () 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 Tier 1 or Tier 2 754.is defined as an from a process system that meets criteria defined in
2.1.2 and 4.10.1. This system includes a built-in calculation tool to assist the user in determining the release quantity of events. All s are analysed to identify those considered to be s as per 754. Process Safety s used by the Company include the number of Tier 1 and the number of Tier 2 s.events are reported in the Company’s Single Reporting System as highlighted in sections