1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13772:2011T e x t i l e s a n d t e x t i l e p r o d u c t s Burning behaviour Curtains and drapes Measurement of flame spread of vertically oriented specimens with large
2、ignition sourceBS EN 13772:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13772:2011. It supersedes BS EN 13772:2003, which is withdrawn.BSI, as a member of CEN, is obliged to publish EN 13772:2011 as a British Standard. However, attention is drawn to the
3、fact that during the development of this European Standard, the UK committee voted against its approval as a European Standard.During the revision process, the UK committee maintained its objection to several technical aspects of this standard. The UK committee is concerned that the application of E
4、N 13772:2011 in its current form could produce test results that might be subject to dispute or litigation.The key concerns are: 1. The behaviour of some fabrics under test is such that they cannot be said to conform to the requirement in EN 13772:2011, 10.8 (“the specimen shall still be under radia
5、tion and remain so during the whole test”). Under radiation, thermoplastic materials melt away from the heat source and so can no longer be deemed to “still be under radiation and remain so during the whole test“.2. The cleansing procedure given in EN 13772:2011 is not intended to demonstrate durabi
6、lity of the fire retardancy of the fabric. This leaves it uncertain whether fabrics would be “fit for purpose” for some applications.3. Whilst the first marker thread is used in this standard it should not be used to assess the flammability performance of the sample as the marker may be severed by t
7、he ignition of combustible gasses liberated from the sample during the initial radiation phase of the test. The severance of the first thread by this mechanism is very sensitive to ambient conditions and is not reproducible under the stated test conditions.Users of this standard are advised to treat
8、 test results with caution. The UK committee advises that BS 5867-2:2008 offers a more reliable method for assessment of textiles used in the manufacture of curtains, including the assessment of durability of the tested performance.The UK participation in its preparation was entrusted to T e c h n i
9、 c a l C o m m i t t e e T C I / 6 6 / - / 8 , B u r n i n g b e h a v i o u r .A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its cor
10、rect application. The British Standards Institution 2012ISBN 978 0 580 60817 9ICS 13.220.40; 59.080.30; 97.160Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31
11、January 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 13772:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13772 January 2011 ICS 13.220.40; 59.080.30; 97.160 Supersedes EN 13772:2003English Version Textiles and textile products - Burning behaviour - Curtains an
12、d drapes - Measurement of flame spread of vertically oriented specimens with large ignition source Textiles et produits textiles - Comportement au feu - Rideaux et tentures - Mesurage de la propagation de flamme dprouvettes orientes verticalement, avec une source dallumage importante Textilien und t
13、extile Erzeugnisse - Brennverhalten - Vorhnge und Gardinen - Messung der Flammenausbreitungseigenschaften von vertikal angeordneten Messproben mit groer Zndquelle This European Standard was approved by CEN on 3 December 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations
14、which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This
15、 European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN membe
16、rs are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
17、Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membe
18、rs. Ref. No. EN 13772:2011: EBS EN 13772:2011EN 13772:2011 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Term and definition54 Principle 55 Health and safety of test operator 66 Apparatus and materials .67 Calibration . 107.1 General . 107.2 Procedure 108 Sample and
19、 test specimens . 108.1 Sample . 108.2 Cleansing . 108.3 Test specimens . 118.3.1 General . 118.3.2 Size of specimens . 118.3.3 Number of specimens (both before and after cleansing) . 118.3.4 Insertion of cotton cloth . 119 Conditioning 1110 Procedure 1111 Test report . 12BS EN 13772:2011EN 13772:20
20、11 (E) 3 Foreword This document (EN 13772:2011) has been prepared by Technical Committee CEN/TC 248 “Textiles and textile products”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endo
21、rsement, at the latest by July 2011, and conflicting national standards shall be withdrawn at the latest by July 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifyin
22、g any or all such patent rights. This document supersedes EN 13772:2003. The main differences between this standard and the previous version are: all three marker threads shall be used; tolerances for the position of the electric radiator and for the tension of the marker threads have been introduce
23、d; the metal grid below the specimen has been defined more precisely; major adjustments to the cleansing procedure. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulg
24、aria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 13772:2011EN
25、 13772:2011 (E) 4 Introduction In order to assess the burning behaviour of curtains and drapes two test methods were established, i.e. EN 1101 for the measurement of ignitability (based on EN ISO 6940) and EN 1102 for the measurement of flame spread (based on EN ISO 6941). EN ISO 6941 measures the f
26、lame spread of vertically oriented specimens exposed to a defined small flame. This allows the flame spread properties of ignitable products to be determined. Nevertheless this test method is not suitable to assess products that do not ignite. The measurement of the length or area destroyed by the s
27、mall flame is questionable as shown by round robin testing. There is a risk that products which pass the small flame test, can still be ignited with a larger ignition source. The equipment used in EN ISO 6941 has therefore been modified by adding a radiator, which radiates on the lower part of the s
28、pecimen in order to boost locally and temporarily the ignition of the specimen. The combination of this radiation and the small flame application simulates the action from a larger flaming source. With this combined ignition source some materials, not ignitable with the small flame, may ignite. Some
29、 of these will self extinguish, when the action from the ignition source has ceased, while others will self-propagate. For this purpose, a European research project (CT 96-2057) was set up to establish a small scale test method for assessing the burning behaviour of curtains and drapes using a large
30、 ignition source. Reaction to fire parameters like smoke development, heat release and toxic components were not taken into account. The project involved eleven laboratories from nine European countries. In order to select the relevant characteristics of burning behaviour in terms of classification
31、and to assess the repeatability and reproducibility, 15 samples of commercially available fabrics representative for the main product groups on the market were tested with the large ignition source test method. Most of them had a flame retardant treatment or coating. The material selection included
32、standard and fire retardant polyester, cotton, modacryl, wool, chlorofibre and glass fibre and represented different structures and fibre blends. The occurrence of flaming debris, the severance of marker threads and the time to sever marker threads (first and third threads) were selected as represen
33、tative parameter to assess the burning behaviour of the samples. Other burning behaviour characteristics such as after-flame and after-glow times did not bring any extra relevant information and were discarded. An inter-laboratory test was conducted in 1997 with ten laboratories, each testing 15 mat
34、erials. Repeatability and reproducibility were assessed through statistical analysis. Consequently, some improvements were introduced in the method. Good agreement was also found with national test methods in use in various European countries or regions (France, Germany, Belgium, the Netherlands, It
35、aly, Scandinavia and the United Kingdom). BS EN 13772:2011EN 13772:2011 (E) 5 1 Scope This European Standard specifies a method for the measurement of flame spread of vertically oriented textile fabrics intended for curtains and drapes in the form of single or multi-component (coated, quilted, multi
36、layered, sandwich construction and similar combinations) fabrics using a large ignition source. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest e
37、dition of the referenced document (including any amendments) applies. EN 367:1992, Protective clothing Protection against heat and fire Method of determining heat transmission on exposure to flame EN 13773:2003, Textiles and textile products Burning behaviour Curtains and drapes Classification schem
38、e EN ISO 139:2005, Textiles Standard atmospheres for conditioning and testing (ISO 139:2005) EN ISO 3175-2, Textiles Professional care, drycleaning and wetcleaning of fabrics and garments Part 2: Procedure for testing performance when cleaning and finishing using tetrachloroethene (ISO 3175-2:2010)
39、EN ISO 3175-3, Textiles Professional care, drycleaning and wetcleaning of fabrics and garments Part 3: Procedure for testing performance when cleaning and finishing using hydrocarbon solvent (ISO 3175-3:2003) EN ISO 3175-4, Textiles Professional care, drycleaning and wetcleaning of fabrics and garme
40、nts Part 4: Procedure for testing performance when cleaning and finishing using simulated wetcleaning (ISO 3175-4:2003) EN ISO 6330:2000, Textiles Domestic washing and drying procedures for textile testing (ISO 6330:2000) EN ISO 6941, Textile fabrics Burning behaviour Measurement of flame spread pro
41、perties of vertically oriented specimens (ISO 6941:2003) EN ISO 10528, Textiles Commercial laundering procedure for textile fabrics prior to flammability testing (ISO 10528:1995) 3 Term and definition For the purposes of this document, the following term and definition applies: 3.1 flaming debris ma
42、terial separating from the specimen during the test procedure, falling below the initial edge of the specimen and igniting a filter paper 4 Principle A heat flux of a defined energy is applied to a specified area of the lower part of the backside of the vertical specimen. After a period of exposure
43、(30 s), the small flame defined in EN ISO 6941 is applied for 10 s to a small piece of cotton fabric fixed around the bottom edge of the specimen. BS EN 13772:2011EN 13772:2011 (E) 6 The possible flame spread is measured through the severance of marker threads. 5 Health and safety of test operator B
44、urning materials may produce smoke and toxic and corrosive gases which can affect the health of operators. Between tests the atmosphere of the testing location, which should be of adequate dimensions to avoid endangering the health of operators, should be cleared of smoke and fumes by an extractor f
45、an or other means of ventilation. 6 Apparatus and materials This standard uses the equipment according to EN ISO 6941 modified as below. 6.1 Specimen holder: The specimen holder according to EN ISO 6941 has to be modified. To prevent the cotton cloth from falling down the specimen holder shall be eq
46、uipped with an extra pin positioned centrally 20 mm from the bottom of the specimen on the holder (see below Figure 1). Dimensions in millimetres Key 1 extra pin Figure 1 Lower part of the specimen holder according to EN ISO 6941 equipped with an extra pin 6.2 Electric radiator, made in a ceramic ma
47、terial and radiating over a circular area with the diameter (100 5) mm. The radiator is heated by an electric resistor, formed in a spiral, which is covered by a (1-1,5) mm thick layer of transparent quartz. 6.3 Electric variable transformer to set the voltage needed to get the heat radiation accord
48、ing to Clause 7. 6.4 Copper disc calorimeter: The calorimeter and allied equipment shall be in accordance with EN 367:1992, 5.2. 6.5 Movable shield made of a non-combustible material of low thermal conductivity; it is placed between the radiator and the test specimen. At least the full width of the
49、lower part (200 mm) of the test specimen shall be shielded. 6.6 Marker threads that shall be of pure cotton with a linear density of (45 5) tex. All three marker threads as specified in EN ISO 6941 are used. The position of the threads is given in Figure 3. The threads shall be under a tension equal to that produced by a weight of (75 25) g. A possible arrangement for this is given in the same Figure 3. BS EN 13772:2011EN 13772:20
