Here are some NFR examples, note the specificity in each one. Unambiguous pass/fail criteria are included with each:
Performance – All web pages will load to interaction within 2 seconds on a 5Mbs connection from anywhere in the world.
Capacity – With negligible changes, the software should be able to cope with 3m transaction records.
Legal – The system shall be compliant with GDPR legislation including the ability to report on and/or delete personal records subject to specific request.
Usability – The website shall be compliant with WCAG 2.2 level A