1、CGSB CAN/CGSB-4=2 NO-27.1-74 Xf 1874650 0025092 b1T National Standard of Canada C ANKGSB-4.2 NO. 27.1-94 Canadian General Standards Board Textile Test Methods Flame Resistance - Vertical Burning Test Copyright Canadian General Standards Board Provided by IHS under license with CGSBNot for ResaleNo r
2、eproduction or networking permitted without license from IHS-,-,- CGSB CAN/CGSB-4.2 N0.27.1-9ir * LB74b50 0025093 556 The CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices chis standard has been developed is a government agency within the Federa! Department of Supply and Services. CGSB i
3、s engaged in the production of voluntary standards in a wide range of subject areas through the media of standards committees and the consensus process. The standards committees are composed of representatives of relevant interests including producers, consumers and other users, retailers, governmen
4、ts, educational institutions, technical, professional and trade societies, and research and testing organizations. Any given standard is developed on the consensus of views expressed by such representatives. The Ministers Advisory Council on CGSB reviews the results of the consensus prooess. CGSB ha
5、s been accredited by the Standards Council of Canada as a national standards-writing organization. The standards that it develops and offers as National Standards of Canada conform to the criteria and procedures established for this pwpose by the Standards Council of Canada. In addition to standards
6、 it publishes as national standards, CGSB produces standards to meet particular needs, in response to requests from a variety of sources in both the public and private sectors. Both CGSB standards and national standards developed by CGSB are developed in conformance with the policies described in th
7、e Policy Manual for the Development and Maintenance of Standards by CGSB. CGSB standards are subject to review and revision at any time, so as to ensure that they keep abreast of technological progress. Suggestions for their improvement, which are always welcome, should be brought to the notice of t
8、he standards committees concerned. Changes to standards are issued either as separate amendment sheets or in new editions of standards. - An up-to-date listing of CGSB standards, including details on latest issues and amendments, and ordering instructions, wiil be found in the CGSB Catalogue, which
9、is published annually and is available without charge upon request. Although the intended primary application of this standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Many t
10、ests required by CGSB standards are inherently hazardous. CGSB neither assumes nor accepts any responsibility for any injury or damage that may occur during or as the result of tests, wherever performed. CGSB takes no position respecting the validity of any patent rights asserted with any item conne
11、cted with this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights are entirely their own responsibility. Further information on CGSB and its services and standards may be obtained from: The Secretary Canadian General Standards Board Ot
12、tawa, Canada K1A 1G6 The STANDARDS COUNCIL OF CANADA is the Co-ordinating body of the National Standards System, a federation of independent, autonomous organizations working towards lhe further development and improvement of voluntary standardization in the national interest. The principal objectiv
13、es of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety and welfare of the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international co-operation
14、 in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the views of a number of capable individuals whose collective interests provide, to the greatest practicable extent,
15、a balance of representation of producers, users, consumers and others with relevant interests, as may be appropriate to the subject in hand. It normally is a standard that is capable of making a significant and timely contribution to the national interest. Approval of a standard as a National Standa
16、rd of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the standard, this remains the continuing responsibility of the accredited standards-writing organization. Those who have
17、 a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to obtain the latest edition from the organization preparing the standard. The responsibility for approving National Stan
18、dards of Canada rests with the: The Manager Marketing and Sales Services Canadian General Standards Board Ottawa, Canada KIA 1G6 How to order by Telephone by Fax by Mail in Person Publications: - (613) 941-8703 r - 1 -800-665-CGSB (Canada only) - (613) 941-8705 - CGSB Sales Centre Ottawa, Canada KIA
19、 1G6 - Suite 1402 222 Queen Street Ottawa, Ontario Copyright Canadian General Standards Board Provided by IHS under license with CGSBNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NATIONAL STANDARD OF CANADA CANKGSB4.2 NO. 27.1-94 TEXTILE TEST METHODS FLAME RESIST
20、ANCE - VERTICAL BURNING TEST This method supersedes issue of September 1987. Prepared by the Approved by the Canadian General Standards Board ms Standards Council of Canada Published May 1994 by the Canadian General Standards Board Ottawa, Canada KIA 1G6 OMinister of Supply and Services Canada - 199
21、4 No pan of this publication may be reproduced in any fohn without the prior permission of the publisher. Copyright Canadian General Standards Board Provided by IHS under license with CGSBNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FamworUi, B. Atkinson, D. Auc
22、oin, G. Auet, A. Bauerle, J.E. Cadieux, J. Carrick, D. Crown, E.M. Daponte, D. Demers, A. Deschamps, C. Dolhan, P. Duhamel, D. Edwards, D. Kasem, M.A. Kiimes, A. Mitton, M.T. Monk, W.B. Muniak, E. Patel, A. Rashid, M.A. Ronsyn, C. Routhier, D. Scrafton, K. Teerhuis, J. Timms, V. Ward, W. - - CGSB CA
23、N/CGSB-4=2 N0=27=1-94 * 1874650 0025095 329 H CANADIAN GENERAL STANDARDS BOARD COMMITTEE ON TEXTILE TEST METHODS (Membership at date of approval) Chairman M.E.T.A. Research Inc. Celanese Canada Inc. Department of Consumer and Corporate Affairs Department of National Defence ORTECH Royal Canadian Mou
24、nted Police Department of National Defence University of Alberta The Wool Bureau of Canada Ltd. Professional Association of Cleaners and Launderers of Quebec Swift Textiles Canada Department of National Defence Textile Technology Centre Canadian Carpet Institute Department of Consumer and Corporate
25、Affairs Dominion Textile Inc. Consultant Consultant ConsultanilThe T. Eaton Company of Canada Sears Canada Inc. Department of Public Works, Alberta Department of Supply and Services Consoltex Inc. The Retail Research Foundation of Canada University of Manitoba Du Pont Canada Inc. Department of Natio
26、nal Revenue (Customs and Excise) Randall, J. Secretary Canadian General Standards Board Acknowledgment is made for the translation of this National Standard of Canada by the Translation Bureau of the Secretaty of Stute. CANKGSB4.2 NO. 27.1-94 Copyright Canadian General Standards Board Provided by IH
27、S under license with CGSBNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- CGSB CAN/CGSB-4*2 NO-27-1-74 * 1874650 0025096 265 National Standard of Canada I I TEXTILE TEST METHODS CANKGSB-4.2 Ottawa 1 Canada K1A 1G6 Flame Resistance - Vertical Burning Test NO. 27.1-9
28、4 1. 1.1 1.2 2. 2.1 3. 3.1 3.1.1 3.2 4. 4.1 4.2 4.3 4.4 4.5 Supersedes Issue of September 1987 PURPOSE AND SCOPE This method assesses the resistance of textile fabrics to burning when a flame is applied to the lower edge. Because the procedure creates conditions favourable to combustion, the test is
29、 a severe one relative to some others in the CAN/CGSB4.2 No. 27 series. The testing and evaluation of a product against this method may require the use of materials andor equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyo
30、ne using this method has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use. PRINCIPLE A luminous flame is applied for a specified time to the lower ed
31、ge of a specimen of fabric held verfically. The occurrence of flash over the surface of the specimen, the duration of aftefflame and afterglow, and the length of the damaged area are noted. APPLICABLE PUBLICATION The following publication is applicable to this method: Canadian General Standards Boar
32、d (CGSB) CAN/CGSB4.175/Part 1ASO 4880 - Burning Behaviour of Textiles and Textile Products - Vocabulary. Reference to the above publication is to the latest issue, unless otherwise specified by the authority applying this method. The source of this publication is shown in the Notes section. APPARATU
33、S Sheet metal draft shield: 300 mm wide, 300 mm deep and 750 mm high, equipped with a means for suspending the test specimen vertically by clamping the top 15 mm of the specimen (Figure 1). The shield shall be open at the top and have a vertical sliding transparent front. Sufficient opening (e.g. 25
34、 mm high and 125 mm long) shall be left at the bottom of the front to allow manipulation of the gas burner. Mirror: for viewing the back of the specimen. Supports: with suitable clamps, pins or clips to hold the lower edge of the specimen. The specimen shall be mounted so that its lower edge is at l
35、east 20 mm above the top of the burner and the distance between the supports for the clamps, pins or clips is 65 mm (Figure 2). Bunsen or Tirrill gas burner: with a 10mm inside diameter tube. The burner can be adjusted to provide a luminous flame 40 mm long when its air supply is completely shut off
36、. Gas: Propane having a heating value of approximately 90 MJ/m3. 1 Copyright Canadian General Standards Board Provided by IHS under license with CGSBNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5. 5.1 6. 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 -_ - - CGSB CANICGSB-4.2 N
37、0-27*L-94 * 1874650 0025097 LTL TEST SPECIMENS Six specimens, each 75 x 315 mm, representative of the fabric, shall be cut from the sample, three specimens with the long dimension parallel to the machine direction and three parallel to the cross direction. The specimens shall not have loose threads
38、or any form of fringe along the edges that might affect the ease of ignition, cause initial flaring or flashing, thus prejudicing the test. PROCEDURE Place the specimens in a drying oven at 105 f 2C for 1 h, then allow to cool in a desiccator before testing. Specimens of fabrics that are affected by
39、 heating to 105“C, such as wax-treated fabrics, shall be predried in a desiccator for at least 12 h before testing, or dried in an oven for 1 h at 6OoC, then cooled to room temperature in a desiccator. Carry out the test in a draft-free room (Note 1). Ensure that the shield is at room temperature an
40、d that the floor beneath the specimen is free of molten polymer and ash. Suspend the specimen vertically in the metal shield, with the clamp gripping the top 15 mm of the specimen. Attach the restraining clamps, pins or clips to the lower corners of the specimen (see Figure 2). The lower edge of the
41、 specimen shall be 20 mm above the top of the burner, which is adjusted to give off a luminous flame 40 mm long with its air supply completely shut off. Apply the flame for 12 s to the midpoint of the lower edge of the specimen, then withdraw it. Note the occurrence of flashing over the specimen, th
42、e afterfame time (in seconds) following removal of the burner flame, the duration and location of any afterglow and whether any molten polymer falls from the specimen and continues to burn on the floor of the shield (Notes 1 and 2). Renllove the specimen from the clamps and determine the damaged len
43、gth to the nearest millimetre by tearing by hand vertically through the damaged area until a marked increase in the resistance of tearing indicates that the undamaged portion of the fabric has been reached (Note 3). The damaged length is 300 mm minus the distance between the end of the tear and the
44、former position of the bottom edge of the clamp. Note 1: Because the tests are carried out in a draft-free room, the air in the room will likely be contaminated with the products of combustion. When these products are potentially toxic, e.g. hydrochloric acid, phosphorous compounds, etc., a respirat
45、or should be worn, or the tests may be carried out in a fume hood with the draft shut 05 Any obnoxious fumes produced may be removed by turning on rhe draj benueen tests. Note 2: Because the afterglow is very dull on some fabrics, it is advisable to examine this effect in subdued light or in the dar
46、k. Note 3: In cases of dispute, determine the damaged length as follows: attach a mass resting on a horizontal surface (by means of a hook, clamp, etc.) to one side of the specimen just outside the damaged area. (The mass shall be in accordance with Table 1.) Raise the other side of the specimen slo
47、wly, tearing the specimen through the weakened damaged area until fabric strong enough to support the mass without further tearing is reached TABLE 1 Mass for Detemiinatioii of Damaged Length Mass per Unit Area of Specimen Total Mass Applied p/m2 g 2 Not exceeding 100 Over 100 and not exceeding 200
48、Over 200 and not exceeding 330 Over 330 57 I13 227 340 NO. 27.1-94 Copyright Canadian General Standards Board Provided by IHS under license with CGSBNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-7. 7.1 7.2 7.3 7.4 7.5 7.6 7.7 8. 8.1 CGSB CAN/CGSB-4-2 N0.27*1-94 *
49、 1874650 0025078 038 D REPORT Report the following information separately for each specimen: Whether or not flashing occurs over the surface. The afterfiame time (in seconds). The duration in seconds and location of any afterglow. The length of the damaged area, to the nearest 5 mm. Any addiional bchaviour occurring under the influence of the flame, such as melting, dripping, shrinking from the flame and abnormal charring (par. 6.6). The duration of
