NE 154 is newly published

The NAMUR Recommendation NE 154 has been released and may now be obtained from the NAMUR Office.

Abstract to NE 154 ‘Functional Safety in Batch Processes’
(Edition: 2016-02-01)

Batch processes pose a challenge on implementing SISs, since batch produced products often require the selection of different trip points and/or SIFs depending on the recipe being used or the phase the process is in. However, the relevant safety standards (e.g. IEC 61511-1) do not explicitly make a distinction between functional safety in batch processes and functional safety in continuous processes.
This recommendation describes an approach to implement SIFs in batch processes.