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  • BSI
    PD ISO/TR 12470-2:2017 Fire-resistance tests. Guidance on the application and extension of results from tests conducted on fire containment assemblies and products - Non-loadbearing elements
    Edition: 2017
    $633.39
    / user per year

Description of PD ISO/TR 12470-2:2017 2017

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.



Standard NumberPD ISO/TR 12470-2:2017
TitleFire-resistance tests. Guidance on the application and extension of results from tests conducted on fire containment assemblies and products - Non-loadbearing elements
StatusDefinitive
Publication Date2017-12-07
Identical National Standard OfISO/TR 12470-2:2017
DescriptorsWater content determination, Fire resistance, Fire safety in buildings, Fire-test classifications
ICS13.220.40 Ignitability and burning behaviour of materials and products, 13.220.50 Fire-resistance of building materials and elements
CommitteeFSH/22/-/5
ISBN978 0 580 95159 6
PublisherBSI
Pages80



About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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