- You need to purchase multiple standards (at least 4).
- In theory, you need to purchase a multi-user license if more than one person should be allowed to read the pdf in your company (hint: nobody purchases the multi-user license).
- Every few years, new versions of the standards are released which you have to purchase.
- Sometimes, you just purchase standards to realise that they're not applicable to your company.
- The industry is riddled with shadiness: A German standards web shop offers a "standards flatrate" for a "great price" of e.g. 750 EUR for 10 standards. [1]
- Getting off-topic, but more related shadiness: Your purchased PDFs are watermarked with your company name and full name of purchaser (!) in the footer of each page to prevent sharing.
[1] https://www.beuth.de/de/regelwerke/normen-flatrates-im-ueber...