Appendix 3 - Guidance on SCE groups and minimum performance assurance levels EP 2009-9009 Restricted 45 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
