CAN CGSB-4 2 NO 27 6-2015 Textile test methods Flame resistance - Methenamine tablet test for textile floor coverings.pdf

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1、 CAN/CGSB-4.2 No. 27.6-2015Supersedes CAN/CGSB-4.2 No. 27.6-M91Textile test methodsFlame resistance Methenamine tablet test for textile floor coveringsICS 59.080.30National Standard of CanadaThe CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this standard has been developed, is a gove

2、rnment agency within Public Works and Government Services Canada. CGSB is 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 intere

3、sts including producers, consumers and other users, retailers, governments, 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. CGSB has been accred

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9、sponsibility of the users of the standard to judge its suitability for their particular purpose. The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects a

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11、or any injury or damage that may occur during or as the result of tests, wherever performed. Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. CGSB shall not be held responsible for identifying any or all such patent rights

12、. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility. Language In this Standard, “shall” states a mandatory requirement, “should” expresses a recommendation and “may” is used to express an option or that whic

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17、 welfare of workers and the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in relation to standardization. An important facet of the Canadian standards development system is the use of the following principles: c

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22、pply standards are encouraged to use NSCs. These standards are subject to periodic review. Users of NSCs are cautioned to obtain the latest edition from the SDO that publishes the standard. The responsibility for approving standards as NSCs rests with: How to order Publications: by telephone 819-956

23、-0425 or 1-800-665-2472 by fax 819-956-5740 by mail CGSB Sales Centre Gatineau, Canada K1A 1G6 in person Place du Portage Phase III, 6B1 11 Laurier Street Gatineau, Quebec by email ncr.cgsb-ongctpsgc-pwgsc.gc.ca on the Web www.tpsgc-pwgsc.gc.ca/ongc-cgsbStandards Council of Canada 55 Metcalfe Street

24、, Suite 600 Ottawa, Ontario K1P 6L5, CANADA index-eng.html/ NATIONAL STANDARD OF CANADA CAN/CGSB-4.2 No. 27.6-2015Supersedes CAN/CGSB-4.2 No. 27.6-M91Textile test methodsFlame resistance Methenamine tablet test for textile floor coveringsPrepared by Approved byCanadian General Standards BoardPublish

25、ed September 2015 by the Canadian General Standards Board Gatineau, Canada K1A 1G6 HER MAJESTY THE QUEEN IN RIGHT OF CANADA, as represented by the Minister of Public Works and Government Services, the Minister responsible for the Canadian General Standards Board (2015). No part of this publication m

26、ay be reproduced in any form without the prior permission of the publisher.CETTE NORME NATIONALE DU CANADA EST DISPONIBLE EN VERSIONSFRANAISE ET ANGLAISE.CAN/CGSB-4.2 No. 27.6-2015CANADIAN GENERAL STANDARDS BOARDCommittee on Textile Test Methods and Terminology(Voting membership at date of approval)

27、ChairDavie, N.1ConsultantGeneral interest categoryBatcheller, J. University of AlbertaCarrick, D. ConsultantHorne, L. University of ManitobaMan, T.M. ConsultantSchumann, E. ConsultantTait, C. National Defence/DSSPMProducer categoryAdam, C. Tencate Protective Fabrics Lankin, G. LAC-MAC LimitedLawson,

28、 L. Davey Textile SolutionsONeill, B. London Hospital Linen Service Inc.Orzel, A. Lincoln Fabrics Ltd.Taylor, V. Invista (Canada) Co.Regulator categoryKorpan, M. Health Canada, CPSD Risk Management BureauSzabo, J. Industry CanadaUser categoryAndersson, C. Health Canada, CPSD Risk Assessment BureauBo

29、wie, K. Public Works and Government Services CanadaDEntremont, E. Royal Canadian Mounted PoliceIzquierdo, V. Textile Technologies CentreLitva, M. Canada Border Services AgencySmith, I. Exova Group Ltd.Tebbs, C. International Drycleaners CongressZhao, J. National Defence/QETESecretary (non-voting)Gra

30、bowski, M. Canadian General Standards Board1 General interestAcknowledgment is made for the translation of this National Standard of Canada by the Translation Bureau of Public Works and Government Services Canada. CGSB 2015 All rights reservedCAN/CGSB-4.2 No. 27.6-2015i CGSB 2015 All rights reserved

31、PageContents1 Scope . 12 Principle 13 Normative references . 14 Apparatus and reagents . 25 Test specimens . 36 Procedure 37 Report 41CAN/CGSB-4.2 No. 27.6-2015Supersedes CAN/CGSB-4.2 No. 27.6-M91 CGSB 2015 All rights reservedTextile test methodsFlame resistance Methenamine tablet test for textile f

32、loor coverings1 ScopeThis method determines the flammability of finished textile floor covering materials when exposed to an ignition source (methenamine tablet) under specified conditions.This method is applicable to all types of textile floor coverings, regardless of fibre type or method of constr

33、uction.This method describes the testing of a single specimen and is to be used in conjunction with a statistically valid sampling plan.The testing and evaluation of a product against this method may require the use of materials and/or equipment that could be hazardous. This document does not purpor

34、t to address all the safety aspects associated with its use. Anyone using this method has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use.2 PrincipleA specim

35、en of the finished textile floor covering is conditioned, dried, brought to room temperature, and placed horizontally in a test chamber in a draft-free environment. A methenamine tablet is placed in the centre of the specimen, ignited, and the shortest distance between the charred area of the floor

36、covering and the inside edge of the specified frame is measured.3 Normative referencesThe following normative document contains provisions that, through reference in this text, constitute provisions of this method. The referenced document may be obtained from the source noted below.NOTE The address

37、provided below was valid at the date of publication of this method.An undated reference is to the latest edition or revision of the reference or document in question, unless otherwise specified by the authority applying this method. A dated reference is to the specified revision or edition of the re

38、ference or document in question. 3.1 Canadian General Standards Board (CGSB)CAN/CGSB-4.2 Textile test methods:No. 2 Conditioning textile materials for testing.3.1.1 SourceThe above may be obtained from the Canadian General Standards Board, Sales Centre, Gatineau, Canada K1A 1G6. Telephone 819-956-04

39、25 or 1-800-665-2472. Fax 819-956-5740. Email ncr.cgsb-ongctpsgc-pwgsc.gc.ca. Web site www.tpsgc-pwgsc.gc.ca/ongc-cgsb/index-eng.html.2CAN/CGSB-4.2 No. 27.6-2015 CGSB 2015 All rights reserved4 Apparatus and reagents 4.1 Test chamber: a box, made from hard, fire-resistant insulation board at least 6

40、mm thick with similar thermal properties as inorganic-cement board, open at the top with all joints tightly sealed, with inside dimensions of 300 mm 10 mm x 300 mm 10 mm x 300 mm 10 mm. A mirror mounted at an angle above the test chamber will assist in viewing the test specimen.4.2 Secondary floor:

41、a rigid, removable, hard, fire-resistant insulation board made of the same material as the test chamber, and measuring approximately 280 mm x 280 mm x 3 mm to fit the inside bottom of the test chamber.4.3 Frame: a steel plate, 230 mm 5 mm x 230 mm 5 mm x 6 mm 1 mm, with a 203 mm 0.5 mm diameter hole

42、 in the centre.4.4 Centring device: an instrument used to centre the methenamine tablet on the specimen.NOTE A half-circle template fitting the diameter of the frame with a half-circle hole of approximately 7 mm diameter at the centre of the base may be used (see Figure 1).Figure 1 Example of a cent

43、ring device4.5 Methenamine timed burning tablet2: a white, round, bevelled tablet with a nominal diameter of 6.35 mm, a weight of 149 mg 5 mg and a burning time of 130 s 13 s. The tablet shall be stored in a desiccator over a desiccant for at least 24 h prior to use, to prevent cracking on ignition.

44、 The tablet shall be handled only by mechanical means.NOTE The burning time of the tablet is the duration of the flaming when the tablet is tested on a metal burn plate under standard laboratory conditions in a draft-free environment.4.6 Desiccator: a cabinet with shelves capable of holding 230 mm x

45、 230 mm specimens separately in a horizontal position. 4.7 Desiccant: anhydrous magnesium perchlorate or equally effective dehydrating agent.4.8 Laboratory drying oven: an oven with a forced draft capable of maintaining a temperature of 105C 2C.4.9 Glove: nonhygroscopic, made of polyethylene.4.10 St

46、eel rule: graduated in millimetres.4.11 Vacuum cleaner: household, with dust brush attachment.4.12 Ignition source: match or lighter.2 A tablet that conforms to these specifications is available from Vesta Pharmaceuticals, Inc., 5767 Thunderbird Road, Indianapolis, IN 46236, U.S.A. Telephone 317-895

47、-9000. Website http:/ No. 27.6-20153 CGSB 2015 All rights reserved5 Test specimens5.1 Cut specimens to a minimum of 230 mm x 230 mm, ensuring they are free from creases, delamination, or other distortion. The number of specimens to be tested shall be based on a statistically valid sampling plan.NOTE

48、 CAN/CGSB-4.155 represents a statistically valid sampling plan consisting of a minimum of ten specimens.5.2 Use the vacuum cleaner to ensure the surface is free of lint, loose yarns, fibres, etc.6 Procedure6.1 Condition the specimen in accordance with CAN/CGSB-4.2 No. 2.NOTE Standard conditioning be

49、fore drying is specified because storage conditions may cause some materials to be moist, and thus require considerably more than 2 h of drying time.6.2 Place the conditioned specimen in an oven at 105C 2C for 2 h 5 min, ensuring free access of air on all sides.6.3 Remove the specimen from the oven and immediately place it in the desiccator with the desiccant for a minimum of 1 h or until it reaches room temperature, ensuring that the specimen is horizontal with the pil