1、BRITISH STANDARD BS ISO 5658-4:2001 Reaction to fire tests Spread of flame Part 4: Intermediate-scale test of vertical spread of flame with vertically oriented specimen ICS 13.220.01; 19.020 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 5658-4:2001 This British Standar
2、d, having been prepared under the direction of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 September 2001 BSI 07-2001 ISBN 0 580 38248 6 National foreword This British Standard reproduces verbatim ISO 5658-4:20
3、01 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee FSH/21, Reaction to fire tests, to Subcommittee FSH/21/3, Spread of flame tests, which has the responsibility to: A list of organizations represented on this subcommittee ca
4、n be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” faci
5、lity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obliga
6、tions. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of
7、 pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 37 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comme
8、ntsReference number ISO 5658-4:2001(E) INTERNATIONAL STANDARD ISO 5658-4 First edition 2001-06-01 Reaction to fire tests Spread of flame Part 4: Intermediate-scale test of vertical spread of flame with vertically oriented specimen Essais de raction au feu Propagation du feu Partie 4: Essais chelle i
9、ntermdiaire de la propagation de la flamme avec prouvette oriente verticalementii ISO 5658-4:2001(E)iii Contents Page Foreword.iv Introduction.v 1 Scope 1 2 Normative references 1 3 Terms and definitions .2 4 Principle3 5 Suitability of a product for testing .7 6 Test specimens7 6.1 Exposed surface
10、7 6.2 Number and size of specimens7 6.3 Construction of specimen assemblies7 6.4 Conditioning.9 6.5 Reference lines 10 6.6 Storage of specimen assemblies.10 7 Test apparatus .12 8 Test enclosure22 9 Setting-up and calibration procedure22 9.1 Setting-up .22 9.2 Verification .23 9.3 Adjustment of the
11、pilot flame .23 10 Test procedure.23 11 Derived flame spread characteristics (optional)26 11.1 General26 11.2 Method 1 .26 11.3 Method 2a)26 11.4 Method 2b)26 11.5 Method 3 .27 12 Precision.27 13 Test report 27 Annex A (normative) Safety precautions31 Annex B (normative) Specimen construction 32 Ann
12、ex C (informative) Calibration of the working heat flux meter.33 Annex D (normative) Interpretation of results of this test procedure .34 Annex E (informative) Variability in the ignitability and flame spread measured in an interlaboratory test 35 Bibliography37ISO 5658-4:2001(E) iv Foreword ISO (th
13、e International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committ
14、ee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechn
15、ical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval
16、 by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 5658 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 5658-4 was
17、prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 1, Fire initiation and growth. ISO 5658 consists of the following parts, under the general title Reaction to fire tests Spread of flame: Part 1: Guidance on flame spread (Technical Report) Part 2: Lateral spread on building prod
18、ucts in vertical configuration Part 4: Intermediate-scale test of vertical spread of flame with vertically oriented specimen Annexes A, B and D form a normative part of this part of ISO 5658. Annexes C and E are for information only.ISO 5658-4:2001(E)v Introduction ISO/TR 5658-1 describes the develo
19、pment of standard tests for flame spread and explains the theory of flame spread for various orientations. ISO 5658-2 provides a simple method by which the lateral surface spread of flame on a vertical specimen can be determined for comparative purposes. This method is particularly useful for resear
20、ch, development and quality control purposes. This part of ISO 5658 provides an intermediate-scale method by which the ignitability and vertical surface spread of flame on a vertical specimen can be determined. The specimen is sufficiently large to obtain a measure of lateral flame spread. Downward
21、flame spread can also be examined as a wind-opposed spread on the specimen surface or by the observation of any flaming drips. Fire is a complex phenomenon; its behaviour and its effects depend upon a number of interrelated factors. The behaviour of materials and products depends upon the characteri
22、stics of the fire, the method of use of the materials and the environment in which they are exposed. The methodology of reaction-to-fire tests is explained in ISO/TR 3814. A test such as specified in this part of ISO 5658 deals only with a simple representation of a particular aspect of the potential fire situation typified by a radiant heat source and flame; it cannot alone provide any direct guidance on behaviour or safety in fire. The attention of all users of the test is drawn to the warning given before clause 1.
