b'3.7Test Observations Observations related to the performance of the specimen were at the times stated in minutes and seconds. U = Observations from the unexposed face. E = Observations from the exposed face. Table 2: Test Observations TimeTest (Min:Sec) FaceObservations 00:00-Test commences. 10:00USmoke issue commences from the head of the specimen. 30:00EThepaneljointsremaintightontheexposedface.Nosignificantvisible change on the unexposed face. A slight rippling of the steel sheet at the top left corner on the unexposed face 40:00U is visible. 50:00EThe panel joints remain tight on the exposed face. 60:00-The specimen continues to satisfy all of the test criteria. 64:00UDiscolouration of the steel sheet adjacent to the left hand side panel joint adjacent to thermocouple 64 is occurring, Roving thermocouple applied to area of discolouration visible at the panel joint 72:10Uadjacentto thermocouple64,200 o Crecorded.Maximumrise Insulation failure is deemed to have occurred. The left hand panel joint where the Insulation failure occurred is beginning to 73:00Uopen up slightly. 90:00-The specimen continues to satisfy the Integrity criteria of the test. Roving thermocouple applied to area of discolouration visible at the panel joint 95:00Uadjacent to thermocouple 64, 285 o C recorded, cotton pad applied but did not ignite. 110:00UThe left hand panel joint has opened up to approximately 4 mm wide. 120:00-The specimen continues to satisfy the Integrity criteria of the test. 122:00-Test discontinued at the request of the client. REPORT NUMBER:ISSUE DATE:PAGE:FR10430-001 ISSUE 21 June 202317 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CAN ONLY BE CLAIMED ON PRESENTATION OF THE COMPLETE SIGNED PAPER REPORT.EXTRACTS OR ABRIDGMENTS OF THIS REPORT SHALL NOT BE PUBLISHED WITHOUT PERMISSION FROM BRANZ LTD.branz.nz | 1222 Moonshine Rd, RD1, Porirua 5381, Private Bag 50 908, Porirua 5240, New ZealandPhone +64 4237 1170branz@branz.co.nz'