REPORT NUMBER: ISSUE DATE: PAGE: FR10430-001 ISSUE 2 1 June 2023 8 of 21 THE LEGAL VALIDITY OF THIS REPORT CAN ONLY BE CLAIMED ON PRESENTATION OF THE COMPLETE SIGNED PAPER REPORT. EXTRACTS OR ABRIDGMENTS OF THIS REPORT SHALL NOT BE PUBLISHED WITHOUT PERMISSION FROM BRANZ LTD. branz.nz | 1222 Moonshine Rd, RD1, Porirua 5381, Private Bag 50 908, Porirua 5240, New Zealand ǀ Phone +64 4237 1170 ǀ branz@branz.co.nz 1. TEST PROCEDURE The test was conducted in accordance with AS 1530.4:2014 “Methods for fire tests on building materials, components and structures, Part 4: Fire-resistance tests for elements of construction, Section 4”, for which the fire resistance of the specimen is the time, expressed in minutes, to failure under one or more of the following criteria. 1.1 Integrity Failure Criteria Failure shall be deemed to occur upon collapse, the development of cracks or fissures, or other openings develop through which flames or hot gases can pass. Failure is defined when any of the following occurs: (a) A cotton pad in its frame applied against the surface of the test specimen over any crack, fissure or flaming under examination, until ignition of the cotton pad (defined as glowing or flaming) or for a maximum of 30 seconds. (b) Gap gauges employed, in turn, without undue force to determine when - a. a 6 mm gap gauge can be passed through the specimen so that the gap gauge projects into the furnace and can be moved a distance of 150 mm along the gap, or, b. a 25 mm gap gauge can be passed through the specimen so that the gap gauge projects into the furnace. (c) Sustained flaming on the surface of the unexposed face for 10 seconds or longer constitutes integrity failure. 1.2 Insulation Failure Criteria Failure in relation to insulation shall be deemed to have occurred if: (a) the mean temperature of the relevant thermocouples attached to the unexposed face of the specimen rises by more than 140 K above the initial temperature; or, (b) the maximum temperature anywhere on the unexposed surface rises more than 180 K above the initial temperature. 2. DESCRIPTION OF TEST SPECIMEN 2.1 General The test specimen consisted of a wall nominally 3,000 mm high x 3,000 mm wide, formed from three, 100 mm thick DeltaCool-MW panels. Two of the panels were full size, 3,000 mm tall by 1,200 mm wide, the width of the third panel was cut to 590 mm. The panels were installed within a concrete lined specimen holder and orientated such that the panel joints were vertical. The panels were fixed to the specimen holder on both horizontal edges and one vertical edge on both faces of the wall with 50 mm x 50 mm x 1.2 mm thick steel angle.
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