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Liquid Fuel Fire
1 What is the name of the 2 What are its specific objectives related to the Priority Unwanted
Event (PUE)?
critical control for Liquid
Fuel Fire?
Hazardous Area Management Having the area appropriately classified into corresponding ‘Hazardous Areas’ as per
ISO/IEC 60079-10-1, and hence minimising the ignition sources and avoiding formation
of flammable atmosphere by having the appropriate equipment and access control to
prevent an explosion
3 What are the critical 4 What are the activities 5 What can be sampled from
within the management
control performance
the set of activities for
requirements to meet the systems that support verification, providing a
objectives? having the critical control clear image of the critical
able to do what is required? control status?
Prequalification of liquid fuels and ACert fuel prequalification process Verify the ACert prequalification process
acceptance control onsite as and when Management of Change process Records of any deviations, management
the fuel specification changes. of change process
Hazardous Area Classification drawings Fire and Explosion risk assessment Review the Hazardous Area Classification
with appropriate equipment selection Access restricted, with appropriate and ensure that it is current and signed
(Flammable atmosphere is formed signage. off by a competent authority
1. if the flashpoint is less than 60°C Hazardous area drawings, Explosion
2. Pressurised leaks - atomisation of liquid Protection Documentation
3. Elevated temperature above flashpoint)
Regular inspection and maintenance of Scheduled inspection and maintenance in Percentage of inspection or Preventive
all equipment within the hazardous area Computerised Maintenance Management Maintenance (PM) completion rate
that could potentially lead to explosion System (CMMS) as per manufacturer’s Number of defects found during
(i.e., Detailed, Close, and Visual requirements / Corporate CEM guidance inspection and PMs. (This should be
Inspection) Classified as highest priority and critical documented in CMMS)
equipment in CMMS
No Hot work allowed within Hazardous Only trained and competent HWP issuers Number of competent HWP issuers for
area unless the area has been on hazardous areas are allowed to issue hazardous area
declassified, and Hot Work Permit (HWP) HWP Review the declassification process
issued. A specific procedure to declassify during an actual HWP process to
hazardous area for hot work activities measure its effectiveness.
Number of fire incidents reported in
hazardous areas
Coloured or tagged as “Hazardous Area” A systematic approach across the plant to Number of non compliances to the
in the field. (Ex) identify, colour or tag as “Hazardous Area” defined systematic approach
This should be visual as well as
identifiable in CMMS
Access restricted, with appropriate Access control to hazardous areas, only Number of areas without access control
signage competent and authorised personnel can and signage
enter a hazardous area with appropriate
PPE and tools (anti-static, spark proof)
6 What is the target performance for critical 7 What is the critical control performance
control?
trigger for shutdown, critical control review or
investigation?
All the inspection, maintenance and testings are carried out as 15% Failed Certified Equipment during Inspection
per ISO/IEC 60079 Standard. More stringent control on HWP in Unauthorised deferment without Plant Manager’s written
Hazardous areas authorisation
Creation date: 01/2021 • The latest and only controlled version of this document is available on the HSE intranet.
© 2021 Holcim - For internal use only
