1、BRITISH STANDARD BS EN ISO 6941:2003 Textile fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens The European Standard EN ISO 6941:2003 has the status of a British Standard ICS 13.220.40; 59.080.30 BS EN ISO 6941:2003 This British Standard was published
2、under the authority of the Standards Policy and Strategy Committee on 8 January 2004 BSI 8 January 2004 ISBN 0 580 43195 9 National foreword This British Standard is the official English language version of EN ISO 6941:2003. It is identical with ISO 6941:2003. It supersedes BS EN ISO 6941:1995 which
3、 is withdrawn. The UK participation in its preparation was entrusted to Technical Committee TCI/63, Textiles Burning behaviour, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards w
4、hich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/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 pages This document comprises a front cover, an inside front cover, the EN ISO tit
7、le page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 13 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPEN
8、NE EUROPISCHENORM ENISO6941 December2003 ICS13.220.40;59.080.30 SupersedesENISO6941:1995 Englishversion TextilefabricsBurningbehaviourMeasurementofflame spreadpropertiesofverticallyorientedspecimens(ISO 6941:2003) TextilesComportementaufeuDterminationdes propritsdepropagationdeflammedprouvettes orie
9、ntesverticalement(ISO6941:2003) TextilienBrennverhaltenMessungder Flammenausbreitungseigenschaftenvertikalangeordneter Proben(ISO6941:2003) ThisEuropeanStandardwasapprovedbyCENon21November2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEur
10、ope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlangua
11、gemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Mal
12、ta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCEN
13、nationalMembers. Ref.No.ENISO6941:2003EINESO96:1402(30E) 2 Foreword Thisdocument(ENISO6941:2003)hasbeenpreparedbyTechnicalCommitteeISO/TC38 “Textiles“incollaborationwithTechnicalCommitteeCEN/TC248“Textilesandtextileproducts“, thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatu
14、sofanationalstandard,eitherbypublicationof anidenticaltextorbyendorsement,atthelatestbyJune2004,andconflictingnational standardsshallbewithdrawnatthelatestbyJune2004. ThisdocumentsupersedesENISO6941:1995. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingco
15、untriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy, Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,Switzerlandand theUnitedKingdom. NOTEFROMCMC Theforewordissusceptibletobeamendedonrece
16、ptionoftheGerman languageversion.Theconfirmedoramendedforeword,andwhenappropriate,thenormative annexZAforthereferencestointernationalpublicationswiththeirrelevantEuropean publicationswillbecirculatedwiththeGermanversion. Endorsementnotice ThetextofISO6941:2003hasbeenapprovedbyCENasENISO6941:2003with
17、outany modifications. ENISO6941:2003 Reference number ISO 6941:2003(E) OSI 3002INTERNATIONAL STANDARD ISO 6941 Second edition 2003-11-15 Textile fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens Textiles Comportement au feu Dtermination des proprits de
18、 propagation de flamme dprouvettes orientes verticalement ENISO6941:2003IS:1496 O3002(E) DPlcsid Fremia ihTs PDF file mya ctnoian emdebt dedyfepcaes. In ccacnadrow eitA hebods licnesilop gnic,y tihs file mirp eb yatnde iv roweb detu slahl ton ide ebtlnu deess teh typfecaes wihce era hml era deddebic
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22、repmissii now nritign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotfo yr ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mial coirypthgis.o gro We bwww.is.o groii ISO 3002 Allr ihgtsser edevrENISO6941:2003
23、IS:1496 O3002(E) I SO 3002 All irhgts seredevr iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Principle . 1 5 Apparatus. 2 6 Precautions 5 7 Sampling 7 8 Conditioning and testing atmosphere 8 9 Setting up the apparatus 8 10 Test procedur
24、e 9 11 Precision 10 12 Test report 10 Annex A (normative) Description and construction of the burner 12 Annex B (informative) Experimental techniques. 13 ENISO6941:2003IS:1496 O3002(E) iv I SO 3002 All irhgts seredevrForeword ISO (the International Organization for Standardization) is a worldwide fe
25、deration 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 committee has been established has the right to be represented on that com
26、mittee. 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 electrotechnical standardization. International Standards are drafted in accord
27、ance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard require
28、s approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6941 was prepared by Technical C
29、ommittee ISO/TC 38, Textiles, Subcommittee SC 19, Burning behaviour of textiles and textile products. This second edition cancels and replaces the first edition (ISO 6941:1984), which has been technically revised. ENISO6941:2003IS:1496 O3002(E) I SO 3002 All irhgts seredevr vIntroduction This method
30、 is one of two closely related methods of test for the inflammability of textile fabrics. This method determines the “flame spread time” vocabulary in relation to the term defined in ISO 4880 the other method observes and measures “ease of ignition” (see ISO 6940). This method assesses the propertie
31、s of textile fabrics in response to flame contact under controlled conditions. Results may not apply to situations where there is restricted air supply or exposure to large sources of intense heat. The influence of seams on the behaviour of fabrics can be determined by this method, the seam being po
32、sitioned within the test specimen so as to be subjected to the test flame. Whenever practicable, trimmings should be tested as part of the fabric assembly on which they are or will be used. ENISO6941:2003blank ENISO6941:2003INTENRATIONAL TSANDADR IS:1496 O3002(E)I SO 3002 All irhgts seredevr 1Textil
33、e fabrics Burning behaviour Measurement of flame spread properties of vertically oriented specimens 1 Scope This International Standard specifies a method for the measurement of flame spread times of vertically oriented textile fabrics and industrial products in the form of single or multi-component
34、 fabrics (coated, quilted, multilayered, sandwich combinations, and similar combinations) when subjected to a small, defined flame. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies.
35、For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4880:1997, Burning behaviour of textiles and textile products Vocabulary ISO 6940, Textile fabrics Burning behaviour Determination of ease of ignition of vertically oriented specimens 3 Term
36、s and definitions For the purposes of this document, the following terms and definitions apply. 3.1 flame application time time for which the ignition flame is applied to the test specimen 3.2 flame spread time time taken by a flame on a burning material to travel a specified distance under specifie
37、d test conditions 4 Principle A defined flame from a specified burner is applied for 10 s to the surface or the bottom edge of textile specimens that are vertically oriented. The flame spread times in seconds for the flame front to travel between marker threads positioned adjacent to the surface of
38、the test specimen and located at three distances from the igniting flame, are recorded. ENISO6941:2003IS:1496 O3002(E) 2 I SO 3002 All irhgts seredevr5 Apparatus 5.1 Mounting frame, constructed to a design capable of holding the gas burner (5.2), see Figure 1, and the test specimen holder (5.3), see
39、 Figure 2, in the specified relative orientation, see Figure 3. The design shall also permit three marker threads (see 5.7) to be attached in the positions shown in Figure 2. At each location the marker thread is mounted as a loop so that the two segments are spaced 1 mm and 5 mm from the plane of t
40、he front of the specimen. Each loop is attached to a different timing device (5.6.2). Dimensions in millimetres a) Gas burner arrangement b) Gas jet Figure 1 Gas burner ENISO6941:2003IS:1496 O3002(E) I SO 3002 All irhgts seredevr 3Dimensions in millimetres c) Flame stabilizer d) Burner tube Key 1 ga
41、s jet 2 burner tube 3 flame stabilizer 4 choke tube 5 notch 6 gas mixing zone 7 diffusion zone 8 air chamber 9 outlet aFitted during assembly. Figure 1 Gas burner (continued) ENISO6941:2003IS:1496 O3002(E) 4 I SO 3002 All irhgts seredevrDimensions in millimetres Key 1 third marker thread 2 second ma
42、rker thread 3 fabric specimen 4 first marker thread 5 mounting pins 6 spacer stubs (optional) 7 burner (oriented for surface ignition) Figure 2 Specimen holder 5.2 Gas burner, as shown in Figure 1 and described in Annex A, capable of being moved from a standby position, where the tip of the burner i
43、s at least 75 mm from the test specimen to either the horizontal or inclined operating position, see Figure 3. 5.3 Specimen holder, consisting of a rectangular metal frame having 12 specimen support pins mounted along the longer edge of the rectangle of length 560 mm by width 150 mm, see Figure 2. T
44、he pins for supporting the specimen are 5 mm, 10 mm, 190 mm, 370 mm, 550 mm and 555 mm above the bottom edge of the frame and have a minimum length of 26 mm. NOTE Longer pins may be needed for mounting thick or multilayer specimens. ENISO6941:2003IS:1496 O3002(E) I SO 3002 All irhgts seredevr 5For t
45、he purpose of locating the specimen in a plane at least 20 mm away from the frame (see 9.1.1 and 9.2.1), a spacer stub of 2 mm diameter and a length of at least 20 mm shall be positioned adjacent to each of the pins, except for the upper and lower pins on each side. 5.4 Template, flat rigid, made of
46、 a suitable material and of a size corresponding to the size of the specimen (560 mm 170 mm) shall be used. Twelve holes, approximately 4 mm in diameter, are drilled along the edges of the template and positioned so that the distances between the centres of the holes correspond to the distance betwe
47、en the pins on the specimen holder (see Figure 2). The holes should be located equidistant about the vertical centreline of the template. 5.5 Gas, commercial grade propane or butane or butane/propane mixtures. NOTE Commercial grade propane is preferred but other gases may be used. 5.6 Timing device 5.6.1 A timing device to control and measure the flame application time and which can be set at 1 s and adjusted at 1 s intervals with an accuracy of 0,2 s or better. 5.6.2 Three timing devices reading to 0,2 s or better are required to measure the flame spread times. These devices are
