What is NEN Connect?

is an online database of the Dutch Standardization Institute and the NEC Foundation; and provides access to:

  • All Dutch standards (NEN, NPR, NTA, NVN, standards in draft),
  • European and International standards accepted in the Netherlands (NEN-EN, NEN-EN-ISO, NEN-ISO, NEN-EN-IEC and NEN-IEC),
  • International standards (ISO, IEC),
  • practice guidelines.

Types of standards

The different types of agreements developed by NEN:


The most common European and global agreements:


Abbreviations in NEN Connect

CEN = the European Committee for Standardization (Comité Européen de Normalisation)

CENELEC = European Committee for Electrotechnical Standardization (Comité Européen de Normalisation Electrotechnique)

ICS-code = International Classification for Standards code

IEC = International Electrotechnical Commission

ISO = International Organisation for Standardization

PGS = Dutch publication series Hazardous Substances 

Other helpful resources

Free webinar "Getting started with energy performance 2.0"

The NTA 8800 determination method will come into effect on 1 January 2021. From that moment on, permit applications for all new buildings to be built must meet the requirements for Nearly Zero Energy Buildings (NZEB). In addition, from 1 January 2021, the energy label will be determined on the basis of NTA 8800. What do these changes mean in practice for quality assurance, recording protocols and the energy label? On October 13, NEN is organizing a free webinar about the new energy performance of buildings from 10.00 to 11.45. For more information and registration click here.