IRMM-ADDENDUM TO Certification of a Resin-Bonded Glass Fibre Board for Thermal Conductivity between – 10 o C and + 50

This Addendum to report EUR 19572 EN describes the re-assessment of the stability if IRMM-440 and the characterisation of the thermal conductivity at lower temperature in the light of new data. The available data show that, as long as the boards are not physically damaged, IRMM-440 is stable for at least 10 years and can be used at least 100 times. Data from an international intercomparison were used for the characterisation of thermal conductivity at low temperatures. All participating laboratories had demonstrated their competence and the results at -10, 0 and 10 °C agree with the certified values.