BSI PD ISO/TR 12470-2:2017
$215.11
Fire-resistance tests. Guidance on the application and extension of results from tests conducted on fire containment assemblies and products – Non-loadbearing elements
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 80 |
This document explains a methodology to determine the applicability of the results of fire resistance tests to actual applications.
It is applicable to those non-loadbearing elements for which there is an ISO standard test procedure based upon the ISO 834 series for determining the fire resistance of a representative sample of the construction proposed for use in a specific building or just for general use. These elements are:
-
fire resisting door assemblies (excluding lift landing doorsets):
-
timber;
-
steel;
-
-
fire resisting vertical glazing – metal framed:
NOTE The rheology of glass is such that gravity has a disproportional influence on fire glass when it is heated to high temperatures and as a consequence, it is not possible to provide generic guidance on the extended application of horizontal glazed elements.
-
timber framed;
-
-
linear gap sealing;
-
service penetration sealing.
Fire resistance testing furnaces have fairly restricted size limitations and as a consequence, there is little confidence that the result obtained on an element of construction tested in accordance with the standard methods will behave in a similar manner when installed in the final building.
Direct and extended applications of test results are the two possible ways to ensure that an element that is not identical to the tested construction will have an acceptable probability of obtaining the same fire rating as that of the original tested specimen. In both cases, these applications generally refer only to the fire rating that the building element can expect to reach if it, or a representative sample of it, were to be tested in a furnace according to the standard fire test conditions used in the reference test.
The criteria and methodology used in evaluating ductwork and dampers is significantly different from those used to evaluate conventional separating elements and for this reason, these forms of construction are not included in the scope of this document. It is planned that a subsequent part of this document may include guidance on these elements.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | Foreword |
| 8 | Introduction |
| 10 | 1 Scope |
| 11 | 2 Normative references 3 Terms and definitions |
| 13 | 4 Principles of the field of application 4.1 General 4.2 Direct application |
| 14 | 4.3 Extended application 4.3.1 General 4.3.2 Rules of extended application 4.3.3 Calculations and computer programs used in extended applications 4.3.4 Judgements in extended applications |
| 15 | 4.4 Project specific application 5 Common factors which influence the field of application of all elements 5.1 General 5.2 Manufacture and materials 5.2.1 General 5.2.2 Direct application |
| 16 | 6 Fire resisting door assemblies 6.1 General 6.2 Direct application 6.2.1 General 6.2.2 Leaves |
| 17 | 6.2.3 Openings in the leaf 6.2.4 Frames 6.2.5 Door hardware (ironmongery) 6.2.6 Fire seals |
| 18 | 6.3 Extended application 6.3.1 General 6.3.2 Rules |
| 19 | 6.3.3 Fire engineering calculations 6.3.4 Expert judgements |
| 31 | 6.3.5 Opening in the leaf or leaves |
| 37 | 7 Fixed vertical fire resisting glazed elements 7.1 General 7.2 Direct application 7.2.1 General 7.2.2 Common parameters of all forms of fixed glazed elements 7.2.3 Framing members (timber) |
| 38 | 7.2.4 Framing members (metal) 7.2.5 Glass retention system 7.2.6 Glass |
| 39 | 7.3 Extended application 7.3.1 General 7.3.2 Rules 7.3.3 Fire engineering calculations 7.3.4 Expert judgements |
| 42 | 8 Linear gap sealing systems 8.1 General |
| 43 | 8.2 Direct application 8.2.1 General 8.2.2 Common parameters for all applications |
| 44 | 8.3 Extended applications 8.3.1 General 8.3.2 Rules 8.3.3 Fire engineering calculations |
| 45 | 8.3.4 Expert judgement |
| 56 | 9 Service penetration sealing systems 9.1 General |
| 57 | 9.2 Direct application 9.2.1 General 9.2.2 Common parameters |
| 58 | 9.3 Extended applications 9.3.1 General 9.3.2 Rules |
| 59 | 9.3.3 Fire engineering calculations 9.3.4 Expert judgement |
| 65 | 10 Improvements in the design of test specimens and modelling to generate fields of application 10.1 General |
| 66 | 10.2 Expert system based upon the use of performance coefficients 10.2.1 Concept 10.2.2 Expert system applied to doors |
| 71 | Annex A (informative) Principles of using expert judgement to establishing the extended field of application |
| 78 | Bibliography |
