Interpretation of new test standards for fire resistance test (NT TR 555)

Size: 2.27 MB
  • Report #: NT TR 555
  • Approved: April 2004
  • Author(s): Fredrik Rosén, Lars Boström
  • Hits: 0


The objective of the project has been to find a common Nordic approach on how the new EN test standards on testing of fire resistance of building products should be applied until the CE marking has been fully established.

Due to the wide extent of the work limitations had to be made. Only four of the new test standards have been dealt with within the scope of this project. Focus has been made on assessments, which are of importance for customers, as well as on where differences would occur between the Nordic laboratories.


Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.