Cybersecurity in OT

Hello world!

For my studies, I have to work on cybersecurity in the OT (Operational Technology) world, more particularly, the qualification of OT materials on the cybersecurity side.

I have already found documentation such as NIST SP 800-82 or IEC 62443.

But my question is, are there other documentations like these? I have not found many documents really focused on cybersecurity in OT. Also, is there a “checklist” for the qualification of an OT product, detailing all the things that need to be checked for cybersecurity qualification?

I am aware that some of you probably think that I can easily find my answer alone, but I have tried for two weeks.

Thanks you <3