How we work
How NEN-Hub writes, checks and counts — so you know what you can and cannot rely on.
How the content is made
Guides, glossary terms and practice questions are drafted with AI tools and then checked and updated by the maintainer. They have not been reviewed by a certified NEN 3140 instructor or inspector.
NEN-Hub is a study aid, not a replacement for the standard. For real work always consult the current norm text and your employer’s aanwijzing.
Updated or verified?
“Updated” only means the page was edited. “Verified on … by …” appears only after a person has checked the page against the source and it is on record. Until then the page is shown as “under review”.
Errors we find are corrected and listed on the Corrections page.
How we count
Learner: a registered, non-deleted user. Anonymous sessions, bots, test accounts and the owner’s accounts are excluded.
Passed: a learner with at least one passed mock exam. Single practice questions never count.
Verified: a published guide with a recorded reviewer and date.
Numbers below 50 are not shown. “Recently passed” appears only with at least 20 distinct passing learners in 30 days. “Key exam terms” is an editorial selection until there is enough visit data (at least 500 dictionary views in 30 days).
Practice results are not certificates
Passing a mock exam (≥ 70 %) gives a practice result with a verification link. It is not a NEN 3140 certificate, not a qualification and not an employer’s aanwijzing.
Norm editions we check against
- NEN 1010:2020+C1:2024 · current
- NEN 3140:2011+A3:2019 · current
- NEN 3140:2026 (ontwerp / draft) · draft
We do not use a draft edition as a source for guides or questions.