Safety Critical Element Management Manual


Appendix 3 - Guidance on SCE groups and minimum performance assurance levels



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Appendix 3 - Guidance on SCE groups and minimum performance assurance levels
EP 2009-9009
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SCE group listing (continued)
SCE goal
Typical equipment types
Description
Minimum level
SCE group PS011
SCE group title Fixed Foam Systems
Fixed foam systems.
To provide an application of foam to prevent, or mitigate,
hydrocarbon pool fuel fires
(including aviation fuel).
At system/area level
SCE group PS012
SCE group title Sand Filters
Sand removal Filter to reduce rapid erosion rates on piping and vessels.
To reduce rapid erosion rates on piping and vessels.
Sand filters inflow line systems
At item level, i.e. per filter
SCE group PS013
SCE group title Chemical Injection Systems
Chemical injection system to control otherwise rapid corrosion rates in pipelines or piping systems.
To ensure chemical injection application complies with design intent to minimise internal corrosion.
At system level

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