The Recipe and the Reactor: ISA-88 / IEC 61512 Batch Control and Its Marriage with IEC 62264

Deep End Era. Engineering with Sankalp · Oct 29, 2026 · 1h 6m

Behind the flare at the Al Sahil Gas Complex, a laminated recipe with three colours of ink and a ten-year-old control sequence disagree about a hold time. Part seven of The Deep End's Enterprise-Control Integration series explains ISA-88 and IEC 61512, the batch control standard whose Part 1 was republished in a new second edition in February 2026. Process engineer Aisha Bello and control engineer Diego Ferrer rebuild the additives plant around it, and the series closes by joining batch control to ISA-95.

Chapters

00:00:00 Cold open: the recipe on the clipboard

00:02:58 Why batch control sits…