ASSESSMENT REPORT. EWFA Report No: Report Sponsor: 3M New Zealand 94 Apollo Drive, Rosedale Auckland, New Zealand

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1 ASSESSMENT REPORT The fire resistance performance of 3M Plastic Device protecting the various, PP, PE and ABS plastic pipes penetrating walls and floors and tested in accordance with AS and assessed in accordance with AS EWFA Report No: Report Sponsor: 3M New Zealand 94 Apollo Drive, Rosedale Auckland, New Zealand

2 Page 2 of 31 DOCUMENT REVISION STATUS Date Issued Issue No Description 05/06/ Initial Issue CONTACT INFORMATION Exova Warringtonfire Aus Pty Ltd - ABN NATA Registered Laboratory Unit 2, Hammond Road Dandenong Victoria 3175 Australia T: +61 (0) F: +61 (0) New South Wales Suite 2002a, Level Market Street Sydney NSW 2000 Australia T: +61 (0) F: +61 (0) Victoria Unit 2, Hammond Road Dandenong Victoria 3175 Australia T: +61 (0) F: +61 (0) Queensland Northpoint, Unit 29, Level North Quay Brisbane QLD 4000 Australia T: +61 (0) F: +61 (0)

3 Page 3 of 31 CONTENTS 1 INTRODUCTION 4 2 TESTED PROTOTYPES 4 3 VARIATION TO TESTED PROTOTYPES 4 4 REFERENCED TEST PROCEDURES 14 5 FORMAL ASSESSMENT SUMMARY 14 6 DIRECT FIELD OF APPLICATION 15 7 REQUIREMENTS 15 8 VALIDITY 16 9 AUTHORITY Applicant Undertakings and Conditions of Use General Conditions of Use Authorisation on Behalf of Exova Warringtonfire Aus Pty Ltd Date of Issue Expiry Date 17 APPENDIX A - SUMMARY OF SUPPORTING DATA 18 A.1 Test Report WF A.2 Test Report WF A.3 Test Report WF A.4 Test Report WF Issue 2 22 APPENDIX B - ASSESSMENT OF SPECIFIC VARIATIONS 25 B.1 Relevance of BSEN :2004 Test Data with respect to AS B.2 Application of Test Data to AS

4 Page 4 of 31 1 INTRODUCTION This report presents an assessment of the fire resistance performance of 3M Plastic Device protecting the various, PP, PE and ABS plastic pipes penetrating walls and floors and tested in accordance with AS and assessed in accordance with AS The tested systems described in Section 2 of this report, when subject to the proposed variations described in Section 3 and tested in accordance with the referenced test method described in Section 4. The conclusions of the report are summarised in Section 5. The validity of this assessment is conditional on compliance with Sections 7, 8 and 9 of this report. Summaries of the test data on which this assessment is based are provided in Appendix A together with a summary of the critical issues leading to the assessment conclusions including the main points of argument. 2 TESTED PROTOTYPES This assessment is based on reference test reports WF165859, WF165860, WF and WF Issue 2. The testings were sponsored by 3M UK Plc. The testings were undertaken by Bodycote Warringtonfire. Tests WF165859, WF and WF comprised various, PP and PE plastic pipes protected by 3M plastic pipe devices penetrating concrete walls and floors. The tests were tested in accordance with BSEN :2004. Test WF Issue 2 comprised various, PP and ABS plastic pipes protected by 3M plastic pipe devices penetrating plasterboard lined wall. The test was tested in accordance with BSEN :2004. Refer to Appendix A for a full summary of the test data. 3 VARIATION TO TESTED PROTOTYPES The proposed construction is as tested in WF165859, WF165860, WF and WF Issue 2, subjecting to the following variation: Extensions are 2000mm away from the walls and floors on unexposed in lieu of 500mm. The proposed construction shall be, PP, PE, and ABS plastic pipes protected with fire collars penetrating walls and floors as shown in table 1 and Figures 1 through 14 Table 1 Schedule of Components Item 1 Description Name Size Installation Polypropylene Material PP Diameter (OD) Wall Thickness s to be supported at 500mm and 1500mm from the separating element on the unexposed.

5 Page 5 of 31 Item Description Name Diameter Installation Name Diameter Installation Name Diameter Installation Name Polyethylene Material PE Diameter (OD) Wall Thickness s to be supported at 500mm and 1500mm from the separating element on the unexposed Polyvinylchloride Material Diameter (OD) Wall Thickness s to be supported at 500mm and 1500mm from the separating element on the unexposed Acrylonitrile Butadiene Sryrene Material ABS Diameter (OD) Wall Thickness s to be supported at 500mm and 1500mm from the separating element on the unexposed 3M Plastic Device intumescent collar Specification Collar Type Collar Diameter (OD) Installation Name Size material 3M plastic pipe device intumescent collar Collar Wall thickness Collar length For Concrete or Masonry Walls and Concrete Floors: Collars fixed to both s of the wall and under of the floor using 60mm long by 6mm diameter steel self cutting screws Or For Plasterboard Walls: Collars fixed to both s of the wall using M5 steel toggle bolts. 3M Pass through Device Round 50.8mm diameter 254mm long Intumescent material in conjunction with foam smoke seals both s

6 Page 6 of 31 Item Description Installation Name Specification Name Material Installation Name Specification Name Specification Installed into the aperture around the pipe and positioned symmetrically in the thickness of the wall. The pass-through device is retained in place using steel angles (15mm 15mm) clamp on each face of the wall. Supporting Plasterboard Wall Framed wall comprising 92mm steel studs clad with two layers of 15mm thick Gypsum Type F plasterboard each. Plasterboard Wall Cavity Insulation 100mm thick mineral fibre insulation with a nominal density 60kg/m 3 Installed between the steel studs Supporting Concrete or Masonry Wall Minimum 150mm thick concrete or masonry walls Supporting Concrete Floor Slab Minimum 150mm thick concrete slab Figure 1 Proposed Construction for Plastic s with 3M PPD Collars in Concrete or Masonry Wall (Elevation)

7 Page 7 of 31 Figure 2 Proposed Construction for Plastic s with 3M PPD Collars in Concrete or Masonry Wall (Section) Figure 3 Sealant Detail in Concrete or Masonry Wall

8 Page 8 of 31 Figure 4 Proposed Construction for Plastic s with 3M PPD Collars in Plasterboard Wall (Elevation) Figure 5 Proposed Construction for Plastic s with 3M PPD Collars in Plasterboard Wall (Section)

9 Page 9 of 31 Figure 6 Sealant Detail in Plasterboard Wall Figure 7 Proposed Construction for Plastic s with 3M PPD Collars in Concrete Floor (Elevation)

10 Page 10 of 31 Figure 8 Proposed Construction for Plastic s with 3M PPD Collars in Concrete Floor (Section)

11 Page 11 of 31 Figure 9 Sealant Detail in Concrete Floor Figure 10 Proposed Construction for Plastic with 3M Pass-through Round in Plasterboard Wall (Elevation)

12 Page 12 of 31 Figure 11 Empty 3M Pass-through Round in Plasterboard Wall (Section) Figure 12 Sealant Detail for Empty Pass Through Device

13 Page 13 of 31 Figure 13 Proposed Construction for Plastic with 3M Pass-through Round in Plasterboard Wall (Section) Figure 14 Sealant Detail for Pass-through Round with in Plasterboard Wall

14 Page 14 of 31 4 REFERENCED TEST PROCEDURES This report is prepared with reference to the requirements of AS Section 10 and AS FORMAL ASSESSMENT SUMMARY Based on the discussion presented in this report, it is the opinion of this testing authority that if the specimen described in section 1 had been modified within the scope of section 3, it will achieve the performance as stated below in if tested in accordance with the test method referenced in Section 4 and subject to the requirements of Section 7: s protected with 3M PPD Intumescent Collars in Concrete or Masonry walls Material PP PE ABS Diameter (OD) Wall Thickness Wall Construction Refer to Figures FRL /180/ /180/ /240/ /30/ mm thick Figures -/240/ Concrete or 1, 2 & 3 -/120/120 Masonry wall /-/ /60/ /90/ /60/60 s protected with 3M PPD Intumescent Collars in Plasterboard Walls Material PP ABS Diameter (OD) Wall Thickness Wall Construction Refer to Figures FRL /90/ /90/ /120/ mm thick Figures -/120/ plasterboard 4, 5 & 6 -/120/120 lined wall /-/ /90/ /60/60

15 Page 15 of 31 s protected with 3M PPD Intumescent Collars in floors Material PP PE Diameter (OD) Wall Thickness Floor Construction Refer to Figures FRL /240/ /120/ /180/ mm thick Concrete floor Figures 7, 8 & 9 -/-/- -/240/ /60/ /-/ /180/180 s protected with 3M Pass-Through Device Round in walls Wall Wall Diameter Material Thickness Construction Refer to Figures mm thick Concrete or 10, 11 & 12 -/120/90 Empty - - Masonry walls OR 152mm thick plasterboard lined wall 10, 13 & 14 -/120/120 FRL 6 DIRECT FIELD OF APPLICATION This assessment applies to penetrations in walls exposed to fire from either and to penetrations in floor slab exposed to fire from below only. 7 REQUIREMENTS This report details the methods of construction, test conditions and assessed results that would have been expected had the specific elements of construction described herein been tested in accordance with AS Any further variations with respect to size, constructional details, loads, stresses, edge or end conditions, other than those identified in this report, may invalidate the conclusions drawn in this report.

16 Page 16 of 31 8 VALIDITY This assessment report does not provide an endorsement by Exova Warringtonfire Aus Pty Ltd of the actual products supplied. The conclusions of this assessment may be used to directly assess the fire resistance performance under such conditions, but it should be recognised that a single test method will not provide a full assessment of the fire hazard under all fire conditions. Because of the nature of fire resistance testing, and the consequent difficulty in quantifying the uncertainty of measurement, it is not possible to provide a stated degree of accuracy. The inherent variability in test procedures, materials and methods of construction, and installation may lead to variations in performance between elements of similar construction. The assessment can therefore only relate only to the actual prototype test specimens, testing conditions and methodology described in the supporting data, and does not imply any performance abilities of constructions of subsequent manufacture. This assessment is based on information and experience available at the time of preparation. The published procedures for the conduct of tests and the assessment of test results are the subject of constant review and improvement and it is recommended that this report be reviewed on or, before, the stated expiry date. The information contained in this report shall not be used for the assessment of variations other than those stated in the conclusions above. The assessment is valid provided no modifications are made to the systems detailed in this report. All details of construction should be consistent with the requirements stated in the relevant test reports and all referenced documents.

17 Page 17 of 31 9 AUTHORITY 9.1 APPLICANT UNDERTAKINGS AND CONDITIONS OF USE By using this report as evidence of compliance or performance, the applicant(s) confirms that: to their knowledge the component or element of structure, which is the subject of this assessment, has not been subjected to a fire test to the Standard against which this assessment is being made, and they agree to withdraw this assessment from circulation should the component or element of structure be the subject of a fire test by a test authority in accordance with the Standard against which this assessment is being made and the results are not in agreement with this assessment, and they are not aware of any information that could adversely affect the conclusions of this assessment and if they subsequently become aware of any such information, agree to ask the assessing authority to withdraw the assessment. 9.2 GENERAL CONDITIONS OF USE This report may only be reproduced in full without modifications by the report sponsor. Copies, extracts or abridgments of this report in any form shall not be published by other organisations or individuals without the permission of Exova Warringtonfire Aus Pty Ltd. 9.3 AUTHORISATION ON BEHALF OF EXOVA WARRINGTONFIRE AUS PTY LTD Prepared by: Reviewed by: S. HU K. Nicholls 9.4 DATE OF ISSUE 05/06/ EXPIRY DATE 30/06/2017

18 Page 18 of 31 APPENDIX A - SUMMARY OF SUPPORTING DATA A.1 TEST REPORT WF A.1.1 A A.1.2 A A.1.3 Report Sponsor 3M UK Plc., 3M Centre, Cain Road, Bracknell, Berkshire, RG12 8HT Test Laboratory Bodycote Warringtonfire, Head Office, Holmesfield Road, Warrington, Cheshire, WA1 2DS, United Kingdom. Test Date A The fire resistance test was conducted on 29 th August 2007 A.1.4 Test Standard A The test was conducted in accordance with BSEN :2004 A.1.5 A A.1.6 A Variations to Test Method None General Description of Tested Specimen For the purpose of the test the specimens were referenced A to H. Specimens A to D were installed within a autoclaved blockwork wall construction and Specimens E to H were installed within the aerated concrete floor construction. A A A The sections of wall and floor had overall dimension of 1000mm high/long by 1000mm wide by 150mm thick. Both were provided with a 56mm, a 115mm, a 165mm and a 205mm circular aperture each penetrated by various sizes of Polyvinylchloride pipes. The apertures were sealed using 3M Plastic Device intumescent pipe collars. For the purpose of this assessment, only specimens A, B, E and F are conred. These specimens are described below: ID Protection Support Construction Capping Support A B E F Ø50mm (OD) 2.3mm thick Ø110mm (OD) 3.5mm thick Ø50mm (OD) 2.3mm thick Ø110mm (OD) 3.5mm thick A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 150mm concrete wall 150mm concrete wall 150mm concrete floor 150mm concrete floor The pipe extend 500mm from the end of the collars and support at 200 and 400mm from the unexposed of the wall A.1.7 A A.1.8 Instrumentation The instrumentation was provided and applied in accordance with BSEN :2004 and BSEN :1999 Test Results

19 Page 19 of 31 A A The test was discontinued after a period of 245 minutes The specimens achieved the following performance: ID Integrity Insulation A No failure at 245 minutes No failure at 245 minutes B No failure at 245 minutes No failure at 245 minutes E No failure at 245 minutes No failure at 245 minutes F 171 minutes; Sustained flaming integrity failure is deemed to occur 171 minutes; A.2 TEST REPORT WF A.2.1 A A.2.2 A Report Sponsor 3M UK Plc., 3M Centre, Cain Road, Bracknell, Berkshire, RG12 8HT Test Laboratory Bodycote Warringtonfire, Head Office, Holmesfield Road, Warrington, Cheshire, WA1 2DS, United Kingdom. A.2.3 Test Date A The fire resistance test was conducted on 5 th September 2007 A.2.4 Test Standard A The test was conducted in accordance with BSEN :2004 A.2.5 A A.2.6 A A A A Variations to Test Method None General Description of Tested Specimen For the purpose of the test the specimens were referenced A to H. Specimens A to D were installed within a autoclaved blockwork wall construction and Specimens E to H were installed within the aerated concrete floor construction. The sections of wall and floor had overall dimension of 1000mm high/long by 1000mm wide by 150mm thick. Both were provided with a 56mm, a 115mm, a 165mm and a 205mm circular aperture each penetrated by various sizes of Polyethylene and Polypropylene pipes. The apertures were sealed using 3M Plastic Device intumescent pipe collars. For the purpose of this assessment, only specimens A, B, E and F are conred. These specimens are described below:

20 Page 20 of 31 ID Protection Support Construction Capping Support A Ø50mm (OD) 5.2mm thick PE A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 150mm concrete wall B E Ø110m m (OD) 6.5mm thick PP Ø50mm (OD) 5.2mm thick PE A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 150mm concrete wall 150mm concrete floor The pipe extend 500mm from the end of the collars and support at 200 and 400mm from the unexposed of the wall F Ø110m m (OD) 6.5mm thick PP A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 150mm concrete floor A.2.7 A A.2.8 A A Instrumentation The instrumentation was provided and applied in accordance with BSEN :2004 and BSEN :1999 Test Results The test was discontinued after a period of 245 minutes The specimens achieved the following performance: ID Integrity Insulation A No failure at 245 minutes No failure at 245 minutes B 42 minutes; A through gap in excess 42 minutes, pipe sealed off of 25mm is visible E No failure at 245 minutes No failure at 245 minutes F 40 minutes; Sustained flaming and cotton pad failures are deemed to occur 28 minutes, roving thermocouple recorded a temperature exceed the insulation failure.

21 Page 21 of 31 A.3 TEST REPORT WF A.3.1 A Report Sponsor 3M UK Plc., 3M Centre, Cain Road, Bracknell, Berkshire, RG12 8HT A.3.2 A A.3.3 Test Laboratory Bodycote Warringtonfire, Head Office, Holmesfield Road, Warrington, Cheshire, WA1 2DS, United Kingdom. Test Date A The fire resistance test was conducted on 28 th August 2007 A.3.4 Test Standard A The test was conducted in accordance with BSEN :2004 A.3.5 A A.3.6 A Variations to Test Method None General Description of Tested Specimen For the purpose of the test the specimens were referenced A to H. Specimens A to D were installed within an autoclaved blockwork wall construction and Specimens E to H were installed within an aerated concrete floor construction. A A The sections of wall and floor had overall dimension of 1000mm high/long by 1000mm wide by 150mm thick. Both were provided with a 56mm, a 115mm, a 165mm and a 205mm circular aperture each penetrated by various sizes of Polyethylene and Polypropylene pipes. The apertures were sealed using 3M Plastic Device intumescent pipe collars. These specimens are described below: ID Protection Support Construction Capping Support A B C D E Ø50mm (OD) 2.6mm thick PP Ø110m m (OD) 4.2mm thick PE Ø158m m (OD) 4.2mm thick PE Ø196m m (OD) 5.8mm thick PE Ø50mm (OD) 2.6mm thick PP A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 160mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 200mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 150mm concrete wall 150mm concrete floor The pipe extend 500mm from the end of the collars and support at 200 and 400mm from the unexpos ed of the wall

22 Page 22 of 31 ID Protection Support Construction Capping Support F Ø110m m (OD) 4.2mm thick PE A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface G Ø158m m (OD) 4.2mm thick PE A 160mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface H Ø196m m (OD) 5.8mm thick PE A 200mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A.3.7 A A.3.8 A A Instrumentation The instrumentation was provided and applied in accordance with BSEN :2004 and BSEN :1999 Test Results The test was discontinued after a period of 245 minutes The specimens achieved the following performance: ID Integrity Insulation A No failure at 245 minutes No failure at 245 minutes B No failure at 245 minutes 238 minutes; The temperature recorded by T/C 15 exceeded the limiting maximum temperature rise of 180K C 20 minutes 20 minutes, pipe sealed off D No failure at 245 minutes 84 minutes; The temperature recorded by T/C 18 exceeded the limiting maximum temperature rise of 180K E No failure at 245 minutes No failure at 245 minutes F 110 minutes 109 minutes; The temperature recorded by T/C 28 exceeded the limiting maximum temperature rise of 180K G 23 minutes 23 minutes, pipe sealed off H 219 minutes 219 minutes, pipe sealed off A.4 TEST REPORT WF ISSUE 2 A.4.1 A A.4.2 A A.4.3 Report Sponsor 3M UK Plc., 3M Centre, Cain Road, Bracknell, Berkshire, RG12 8HT Test Laboratory Bodycote Warringtonfire, Head Office, Holmesfield Road, Warrington, Cheshire, WA1 2DS, United Kingdom. Test Date A The fire resistance test was conducted on 24 th August 2007 A.4.4 Test Standard A The test was conducted in accordance with BSEN :2004

23 Page 23 of 31 A.4.5 A A.4.6 A Variations to Test Method None General Description of Tested Specimen The test assembly comprised a drywall construction of overall dimensions 3000mm wide by 3000mm high by 152mm thick. The framing comprised 92mm wide galvanised steel studs, at maximum 600mm centres, friction fitted into galvanised steel U-section head and base channels. Each of the stud frame was faced with two layers of 15mm thick Gypsum Type F plasterboard. The framework was filled with mineral fibre insulation. The wall was provided with one 800mm high by 600mm wide aperture, into which was installed four cable trays carrying various sizes of cables. The wall also incorporated twelve circular apertures, eleven of which were penetrated by cables or plastic pipes. The circular apertures sizes for plastic pipes were 55mm, 56mm and 115mm respectively. A The apertures were sealed using 3M Plastic Device intumescent pipe collars and 3M Pass Through devices. The drywall construction incorporated one free edge. A A For the purpose of this assessment, specimens B, H and M are not conred. These specimens conred are described below: ID Protection Support Construction Capping Support A Ø50mm 2.6mm thick PP A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface C Ø110m m 4.2mm thick PP A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface D E F Ø50mm 5.4mm thick PP Nil Ø110m m 6.5mm thick PP A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 50.8mm round 3M Plastic Device and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface 152mm thick drywall, two layers of 15mm thick Gypsum Type F plasterboard clad on each of 92mm deep steel studs. - The pipe extend 500mm from the end of the collars and support at 200 and 400mm from the unexpose d of the wall G Ø50mm 2.3mm thick A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface I Ø110m m 3.5mm thick A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface

24 Page 24 of 31 ID Protection Support Construction Capping Support J Ø50mm 2.3mm thick ABS A 55mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface K Ø43mm 3mm thick A 50.8mm round 3M Plastic Device and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface L Ø110m m 7.3mm thick ABS A 110mm 3M Plastic Device intumescent pipe collar and a bead of 3M IC 15WB + sealant applied at the pipe to wall interface A.4.7 A A.4.8 A A Instrumentation The instrumentation was provided and applied in accordance with BSEN :2004 and BSEN :1999 Test Results The test was discontinued after a period of 125 minutes The specimens achieved the following performance: ID Integrity Insulation A No failure at 125 minutes No failure at 125 minutes C No failure at 125 minutes No failure at 125 minutes D No failure at 125 minutes No failure at 125 minutes E No failure at 125 minutes No failure at 125 minutes 29 minutes F Sustained flaming 29 minutes occurred and cotton pad sealed off integrity failure G No failure at 125 minutes 105 minutes 94 minutes I A though gap in excess of 94 minutes 25mm is visible and sealed off sustained flaming J K L 119 minutes A though gap in excess of 25mm is visible No failure at 125 minutes 94 minutes A though gap in excess of 25mm is visible 119 minutes The temperature recorded by T/C 57 exceeded the limiting maximum temperature rise of 180K 117 minutes The temperature recorded by T/C 65 exceeded the limiting maximum temperature rise of 180K 94 minutes sealed off

25 Page 25 of 31 APPENDIX B - ASSESSMENT OF SPECIFIC VARIATIONS B.1 RELEVANCE OF BSEN :2004 TEST DATA WITH RESPECT TO AS B.1.1 B General The fire resistance tests WF165859, WF165860, WF and WF Issue 2 were conducted in accordance with EN :2004 and EN1363-1: This standard differs from AS and the significance of these differences is discussed below. B.1.2 B Temperature Regime The furnace temperature regime for fire resistance tests conducted in accordance with AS follows the same trend as EN1363-1: B The parameters outlining the accuracy of control of the furnace temperature in AS and EN1363-1: 1999 are not appreciably different. B.1.3 B B B B B B B B Furnace Thermocouples The furnace thermocouples specified in AS are type K, mineral insulated metal sheathed (MIMS) with a stainless steel sheath having a wire of diameter of less than 1.0mm and an overall diameter of 3mm. The measuring junction protrudes at least 25mm from the supporting heat resistant tube. The furnace thermocouple specified in EN1363.1: 1999 is made from folded steel plate that faces the furnace chamber. A thermocouple is fixed to the of the plate facing the specimen with the thermocouple hot junction protected by a pad of insulating material. The plate part is to be constructed from 150 ±1 mm long by 100 ±1 mm wide by 0.7 ±0.1 mm thick nickel alloy sheet strips. The measuring junction is to consist of nickel chromium/nickel aluminium (Type K) wire as defined in IEC , contained within mineral insulation in a heat-resisting steel alloy sheath of nominal diameter 1 mm, the hot junctions being electrically insulated from the sheath. The thermocouple hot junction is to be fixed to the geometric centre of the plate, in the position shown in Figure B6.1, by a small steel strip made from the same material as the plate. The steel strip can be welded to the plate or may be screwed to it to facilitate replacement of the thermocouple. The strip should be approximately 18 mm by 6 mm if it is spot-welded to the plate, and nominally 25 mm by 6 mm if it is to be screwed to the plate. The screw is to be 2 mm in diameter. The assembly of plate and thermocouple should be fitted with a pad of inorganic insulation material 97 ±1 mm by 97 ±1 mm by 10 ±1 mm thick with a density of 280 ±30 kg/m3. The relative location of the furnace thermocouples for the exposed face of the specimen, for AS and EN1363.1: 1999, is 100mm +10mm and 100mm +50mm respectively. The furnace control thermocouples required by EN1363.1: 1999 are less responsive than those specified by AS This variation in sensitivity of can produce a potentially more onerous heating condition for specimen tested to EN1363.1: 1999, particularly when the furnace temperature is changing quickly in the early stages of the test. B.1.4 B Specimen Thermocouples For penetration sealing systems, thermocouples are fixed in generally similar locations on the unexposed face: on the supporting construction and/or seal and on the penetrating service adjacent at the plane of penetration, and on the penetrating service some distance from the plane of penetration.

26 Page 26 of 31 B.1.5 B B B Furnace Pressure It is a requirement of AS and for EN1363-1: 1999 that for vertical elements, a furnace gauge pressure of zero (0) Pa is established at a height 500mm above the notional floor level or for wall penetrations, the furnace gauge pressure shall be 15Pa at the location of the lowest penetration It is a requirement of AS and for EN1363-1: 1999 that for horizontal elements, a furnace gauge pressure of 20Pa is established at a height 100mm below the floor soffit level. The parameters outlining the accuracy of control of the furnace pressure in AS and EN1363-1: 1999 are also not appreciably different. B.1.6 B Performance Criteria AS specifies the following performance criteria for building materials and structures: Structural Adequacy (Not relevant to the referenced test) Integrity Insulation B.1.7 Integrity B The integrity criteria differ slightly between AS and EN1363.1: 1999 B B While a specimen maintains its insulation performance, the specimen shall be deemed to have failed the integrity criterion in accordance with AS if it collapses or sustains flaming or other conditions on the unexposed face, which ignite the cotton pad when applied for up to 30 seconds. A specimen shall be deemed to have failed the integrity criterion in accordance with AS when any of the following occur: sustained flaming for 10 seconds a gap forms that allows the passage of hot gases to the unexposed face and ignite the cotton pad when applied for up to 30 seconds. a gap forms that allows the penetration of a 25mm gap gauge anywhere on the specimen a gap forms that allows a 6mm x 150mm gap gauge to penetrate the specimen anywhere on the specimen. B Except for minor technical variations, the integrity criteria in EN1363.1: 1999 are generally applied in a comparable manner. B.1.8 B Insulation The general insulation criteria of AS and EN1363.1: 1999 are not appreciably different. B.1.9 B B B Specimen Configuration AS specifies for plastic pipes, the external projection away from the furnace shall be a minimum of 2000mm. The pipes shall be capped on the exposed and left uncapped on the unexposed. EN also requires the pipes extend on the fire and non-fire by a minimum of 500mm. Plastic pipes tested in the fire resistance tests WF165859, WF165860, WF and WF Issue 2 extended 500mm on exposed and unexposed s. This is a significant variation to the required construction and its effect on the performance will need to be conred on a case by case basis.

27 Page 27 of 31 B.2 APPLICATION OF TEST DATA TO AS B.2.1 B B B B B General The variation in furnace heating regimes, furnace thermocouples and the responses of the difference thermocouple types to the furnace conditions are not expected to have an overall significant effect on the outcome of the referenced fire resistance tests. In regards to furnace pressure, reports WF165859, WF165860, WF stated that 150mm below the soffit of the floor assembly the pressure was maintained between 19 Pa and 22 Pa and report WF Issue 2 stated the pressure at nominally 500mm above mid height of the lowest specimen for vertical construction was maintained between 18 Pa and 20 Pa, thus those were all within the limits specified by AS for both the wall and floor specimens. With regards to the plastic pipes tested in WF165859, WF165860, WF and WF Issue 2, their extensions were 500mm away from the walls and floors on unexposed rather than 2000mm required by AS Theoretically, this difference in extension can affect the drawing of hot gases through the pipe by a stack effect and can lead to high temperatures on the non-fire of the specimen than for a shorter pipe extension. The impact of the stack effect on the tested services can be significant when there are gaps at the penetrations and hot gasses are passing in the pipes and in particular for floor specimens. The longer the length of pipe above the collar is the greater the increase in pressure across the collar or gap. For walls the stack affect is significant. Wall tests B B B For the constructions tested in WF165861, only specimens A, B, E and F are conred in this assessment. Around 7 minutes test duration the collars for specimens A, B and F reacted and filled the aperture thereby reducing the smoke emissions. The pipes did not vent volumes of smoke from the end of the pipe until some stage later in the test as listed in Table B1. For the constructions tested in WF at around 4 minutes test duration the collars for all specimens reacted and filled the aperture thereby reducing the smoke emissions. The services did not vent volumes of smoke from the end of the pipe until some stage later in the test as listed in Table B1. For the constructions tested in WF165860, specimens A, B, E and F are conred. Around 12 minutes test duration the collars for specimens A, B and E reacted and filled the aperture as smoke release had decreased. The pipes did not vent volumes of smoke from the end of the pipe until some stage later in the test as listed in Table B1. Table B1 Wall Specimens Test WF Support element Concrete wall ID A B Size Ø50 Ø110 Tested performance (mins) 245 integrity 245 insulation 245 integrity 245 insulation Time Smoke emissions from the end of the pipe resumed 157 mins 157 mins A Ø50 PP 245 integrity 245 insulation 245 mins (no smoke) WF Concrete wall B C Ø110 PE Ø160 PE 245 integrity 238 insulation 20 integrity 20 insulation 114 mins 20 mins D Ø200 PE 245 integrity 84 insulation 40 mins

28 Page 28 of 31 Test WF Support element Concrete wall ID A B Size Ø50 PE Ø110 PP Tested performance (mins) 245 integrity 245 insulation 42 integrity 42 insulation Time Smoke emissions from the end of the pipe resumed 245 mins (no smoke) 26 mins A Ø50 PP 125 integrity 125 insulation 125 mins (no smoke) C Ø110 PP 125 integrity 125 insulation 125 mins (no smoke) D Ø50 PE 125 integrity 125 insulation 125 mins (no smoke) E N/A 125 integrity 125 insulation 125 mins (no smoke) WF Issue 2 Drywall F G Ø110 PP Ø50 29 integrity 29 insulation 125 integrity 105 insulation 29 mins 104 mins I Ø integrity 94 insulation 91 mins J Ø50 ABS 119 integrity 119 insulation 119 mins K Ø integrity 117 insulation 125 mins (no smoke) L Ø110 ABS 94 integrity 94 insulation 83 mins B B The significance of the above observations are that the performance of specimen, and lack of gaps and smoke emission for a significant part of some tests indicate that for the same period the influence of the stack effect above the collars would be minimal. It is therefore conred to safe to conr the effect of the additional shorter pipe extension in the tested construction to not significantly affect the results of the tests up to the times listed for which smoke emissions resumed in table B1.

29 Page 29 of 31 B Floor Tests Similarly as for walls, for the floor constructions tested in WF165859, WF and WF at the early stage of the test for all specimens the collars reacted and filled the aperture thereby reducing the smoke emissions. The services did not vent volumes of smoke from the end of the pipe until some stage later in the test as listed in Table B2. Table B2 Floor Specimens Test WF WF WF Support element Floor Floor Floor ID E F Size Ø50 Ø110 Tested performance (mins) 245 integrity 245 insulation 171 integrity 171 insulation E Ø50 PE 245 integrity 245 insulation F Ø110 PP 40 integrity 28 insulation E Ø50 PP 245 integrity 245 insulation F Ø110 PE 110 integrity 109 insulation G Ø160 PE 23 integrity 23 insulation H Ø200 PE 219 integrity 219 insulation Time Smoke emissions from the end of the pipe resumed 245 mins (no smoke) 155 mins 245 mins (no smoke) 29 mins 224 mins 68 mins 23 mins 193 mins B B The significance of the above observations are that the performance of specimen, and lack of gaps and smoke emission for a significant part of the test indicate that for the same period the influence of the stack effect above the collars would be minimal. It is therefore conred to safe to conr the effect of the additional shorter pipe extension in the tested construction to not significantly affect the results of the tests up to the times listed for which smoke emissions resumed in Table B2.

30 Page 30 of 31 B Conclusion In light of the above, it is conred that the results relating to the integrity and insulation performance of the referenced tests can be used to assess the FRL of tested specimen up to 240 minutes in accordance with AS and AS for the specimen listed below s protected with 3M PPD Intumescent Collars in Plasterboard Walls Material PP PE ABS Diameter (OD) Wall Thickness Wall Construction Refer to Figures FRL -/180/ /180/ /240/ /30/ mm thick Figures -/240/240 Concrete or Masonry wall 1, 2 & 3 -/120/ /-/ /60/ /90/ /60/60 s protected with 3M PPD Intumescent Collars in Plasterboard Walls Material PP ABS Diameter (OD) Wall Thickness Wall Construction Refer to Figures FRL -/90/ /90/ /120/ mm thick Figures -/120/120 plasterboard lined wall 4, 5 & 6 -/120/ /-/ /90/ /60/60

31 Page 31 of 31 s protected with 3M PPD Intumescent Collars in floors Material PP PE Diameter (OD) Wall Thickness Floor Construction Refer to Figures FRL -/240/ /120/ /180/ mm thick Figures -/-/ Concrete floor 7, 8 & 9 -/240/ /60/ /-/ /180/180 s protected with 3M Pass-Through Device Round in walls Material Diameter Wall Thickness 43 3 Wall Construction 150mm thick Concrete or Masonry walls Refer to Figures Empty mm thick 10, 13 & 14 -/120/120 plasterboard lined wall OR FRL 10, 11 & 12 -/120/90