BS DD ENV 13381-7:2002 Test methods for determining the contribution to the fire resistance of structural members. Applied protection to timber members
This Part of this European Prestandard specifies a test method to be followed for determining the contribution of
fire protection systems to the fire resistance of structural timber members.
Such fire protection systems include claddings, sprayed fire protection and coatings.
The method is applicable to all fire protection systems used for the protection of timber members. These can be fixed
directly, totally or in part, to the timber member and can include an air gap between the fire protection system and
the timber member, as an integral part of its design.
Evaluation of timber constructions protected by horizontal or vertical protective membranes are the subject of ENV
13381-1 or ENV 13381-2 respectively.
The test method is applicable to the determination of the contribution of fire protection systems to the fire resistance
of loadbearing timber structural members and non-loadbearing parts of the works, including floors, roofs, walls,
beams and columns. It is also applicable to timber structural members incorporating insulating materials between
the timber members, e.g. between timber joists in floor constructions.
The test method and its assessment procedure is designed to permit direct application of the results to cover a range
of thicknesses of the applied fire protection material.
This European Prestandard contains the fire test which specifies the test to be carried out to determine the ability
of the fire protection system to delay the temperature rise throughout the timber member, to determine the ability
of the fire protection system to remain coherent and fixed to the timber member and to provide data of the
temperature profile throughout the timber test member, when exposed to the standard temperature/time curve
according to the procedures defined herein.
In special circumstances, where specified in national building regulations, there can be a need to subject reactive
protection material to a smouldering curve. The test for this and the special circumstances for its use are detailed
in annex A.
The fire test methodology makes provision for the collection and presentation of data which can be used as direct
input to the calculation of fire resistance of timber members in accordance with the procedures given in
ENV 1995-1-2.
A description of the relationship of this test method and the assessment of the results obtained therefrom to
ENV 1995-1-2 and guidelines for the use of this test method in accordance with that standard are given in annex B.
This European Prestandard also contains the assessment which prescribes how the analysis of the test data should
be made and gives guidance to the procedures by which interpolation should be undertaken.
The limits of applicability of the results of the assessment arising from the fire test are defined, together with
permitted direct application of the results to different timber constructions over the range of thicknesses of the
applied fire protection system tested.
BS DD ENV 13381-7:2002 Referenced Document
EN 1363-1 Fire resistance tests - Part 1: General Requirements*， 2012-07-01 Update
EN 1363-2 Fire resistance tests - Part 2: Alternative and additional procedures
EN 1365-1 Fire resistance tests for loadbearing elements - Part 1: Walls*， 2013-04-01 Update
EN 1365-2 Fire resistance tests for loadbearing elements - Part 2: Floors and roofs*， 2014-11-01 Update
EN 1365-3 Fire resistance tests for loadbearing elements - Part 3: Beams
EN 1365-4 Fire resistance tests for loadbearing elements - Part 4: Columns
EN 312 Particleboards - Specifications*， 2010-09-01 Update
EN 338 Structural timber - Strength classes*， 2016-04-01 Update
EN ISO 13943 Fire safety - Vocabulary (ISO 13943:2023)*， 2023-09-20 Update
ISO 8421-2 Fire protection; Vocabulary; Part 2 : Structural fire protection Bilingual edition
BS DD ENV 13381-7:2002 history
2002BS DD ENV 13381-7:2002 Test methods for determining the contribution to the fire resistance of structural members. Applied protection to timber members