The average surface temperature is measured with minimum 5 thermocouplesevenly distributed over the test specimen.Additional thermocouples are attached to measure the maximum temperaturerise at locations where higher temperature conditions are expected to exist.Measurement of vertical deflection is recorded at location where the maximumdeflections are expected to occur.Radiation is measured if the specimen includes areas with high radiation.Performance criteriaThe test specimen is monitored throughout the test for performance againstthree criteria, Loadbearing capacity (R), Integrity (E) and Insulation (I).Failure of loadbearing capacity is deemed to have occurred when both of thefollowing criteria have been exceeded:• deflection D = L2 / 400 d (mm)• rate of deflection dD/dt = L2 / 9000 (mm/min)where L is the clear span of the test specimen in mm and d is the distance fromthe extreme fibre of the cold design compression zone to the extreme fibre ofthe cold design tension zone of the structural section, in mm.The integrity is the ability of the test specimen to prevent the passage offlames and hot gases to the unexposed side. The test specimen can no longersatisfy the integrity criteria if:• Sustained flaming on the unexposed side occurs.• It fails the cotton pad test or the gap gauge test (see information sheet onEN 1363-1 for further description).A roof element being lifted off the furnaceThe test specimen does no longer satisfy the insulation criteria if the temperaturerise on the unexposed side exceeds 180 oC on any of the thermocouplesor 140 oC in average. (The average temperature criterion only applies for someof the thermocouples.)Field of direct application of test resultThe test results are directly applicable to a similar untested floor or roof constructionprovided the following is true:With respect to structural building member:• The maximum moments and shear forces, with when calculated on the samebasis as the test load, shall not be greater than those tested.With respect to the ceiling system:• The size of panels of the ceiling lining shall not be changed.
• The total area occupied by fixtures and fittings relative to the area of theceiling lining is not increased and the maximum tested opening in the liningis not exceeded.With respect to the cavity:• The height of the cavity or cavities is equal to or greater than the heighttested.• No combustible or insulating material is added to the cavity unless the sameamount (fire load) of combustible or insulating material was included in thetest specimen.With respect to the inclination of roof constructions• For trussed rafter roof construction, the inclination is equal to the testedinclination with a tolerance of ±5°.• For apex or monopitch roof construction as defined the inclination is in accordancewith the following table:Tested at a° from the horizontal≤ 10° (nominally horizontal) 0° up to 25°25° 15° up to 45°30° 20° up to 50°Valid for installation in practiceFor glazed floors and roofs, the results of the fire test are directly applicable tosimilar constructions where one or more of the changes listed below are madeand the construction continues to comply with the appropriate design code forits stiffness and stability. Other changes are not permitted.• Decrease in the linear dimensions of panes• Change in the aspect ratio of panes provided that the largest dimension ofthe pane and its area are not increased.• Decrease in the distance between fixing centres.• Glazing beads on the non-fire side of asymmetrical constructions if they wereon fire side of the test specimen.• Screwed-on glazing beads, if “clip-on” beads were incorporated in the testspecimen• Allowances for expansion if none were incorporated in the test specimenNo extension of span is permitted under direct application.Angle of prientation:Tested at a° from the horizontal0° up to 15°Valid for installation in practice45° >15° up to 80°Further informationFor further information on Testing to this method, please contantAnders DrustrupPhone: +45 36 34 90 38e-mail: firstname.lastname@example.org