"There is a stand-alone ISO standard that applies to post-editing of raw #machinetranslation output: ISO 18587:2017 Translation services – Post-editing of machine translation output – Requirements, which is entirely separate from ISO 17100."
https://wa1.fit-ift.org/wp-content/uploads/2021/09/ISO-17100-FAQs-for-Freelance-Translators_EN-FR.pdf

"Note that neither of those standards (currently) addresses the by now common situation where a translator uses a commercial #MT tool as part of an integrated translation technology suite together with translation memory, terminology management, and
possibly other tools."