I'm not sure if this is right, but the Dutch standards body seems to have this document available [0] for free with part of it available for evaluation [1] and it seems like it's the real deal. Most other parts of the standard a shit ton of money (>€200 per part, with over 12 paid parts), but some others [2] are free as well. There are also outdated versions of the document available for free or cheap if those suit your needs, but I'm sure you can find cheaper alternatives for that as well.
I don't know if there are any requirements for access (like an address in the Netherlands, or Dutch citizenship) but it seems like you can just grab the standard from here completely legally.
https://www.nen.nl/en/nen-iso-iec-9075-2-2016-c1-2019-en-263...
The rest is around 200 euros per part:
https://www.nen.nl/en/elasticsearch/?search=9075&sortmode=as...