"API RP 14C requires the development of SAFE charts (cause-and-effect charts) and safety flow diagrams (P&ID diagrams showing equipment and safety devices)"
and
"This requirement for review and approval of safety systems receives support from 14C’s easy cookbook approach, which provides for a simple framework. Each type of process equipment (pump, vessel, tank, pipeline) has a list of the required safety devices and when you can exclude those devices.
In the SAFE chart for each piece of process equipment, all the required safety devices are listed, and those that have been excluded have the reference to the safety analysis checklist, which lists all the reasons for excluding a device. The SAFE chart becomes an easy tool to check that all requirements have been met and what actions the safety devices take."
Why one would post this question in a metallurgy forum...I cannot answer.
