5.1.7Process 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 Process Safety Event (PSE) is defined as anfrom a process that meets the Tier 1, Tier 2 or Tier 3 definitions within 754.
Loss of Primary Containment (LOPC) events are reported in the Company’s Single Reporting System as highlighted in Section 5.1.5. 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.
The data for Process Safety Events (PSE’s) reported in 2016 have been revised to include six additional Tier 2 2.6.1, this is an additional outcome of the activity of the review of Tier 3 events performed at the beginning of 2017.’s which were previously classified as Tier 3 events (Total of 20 Tier 2). As reported in section