I cannot give you an answer to your question, but my advice is to look not only at ISO standards. My experience from working in ISO is that the drafting of standards in ISO is relatively cumbersome and that ISO standards are often difficult to understand. Moreover, there are many other organisations that create their own standards. It also depends on what kind of digital data is involved. https://en.wikipedia.org/wiki/Digital_preservation gives a good introduction with many links to standards.

Thanks for your valuable advice.

Many thanks for your advices.🙏🏻

ISO 13008:2012 -- Information and documentation — Digital records conversion and migration process

ISO 14721:2012: Space data and information transfer systems — Open archival information system (OAIS) — Reference model

ISO 16363:2012 -- Space data and information transfer systems — Audit and certification of trustworthy digital repositories

ISO 20652:2006 -- Space data and information transfer systems — Producer-archive interface — Methodology abstract standard

ISO/IEC 27001 -- Information security management [really all is the 2700 family]

Thank you so much for adding to the topic's knowledge.