CAN CGSB-4 2 NO 78 1-2001 Textile test methods Thermal protective performance of materials for clothing.pdf

1、 CAN/CGSB-4.2 No. 78.1-2001 Reaffirmed November 2013 National Standard of Canada ICS 59.080.01 Textile test methods Thermal protective performance of materials for clothing The CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this standard has been developed, is a government agency with

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9、he 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 associated with it

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11、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. Users of this s

12、tandard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility. Further information on CGSB and its services and standards may be obtained from: The Manager Standards Division Canadian General Standards Board Gatineau, Canada K1A 1G6 T

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20、 and timely contribution to the Canadian interest. Those who have a need to apply 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

21、standards as NSCs rests with: Standards Council of Canada 270 Albert Street, Suite 200 Ottawa, Ontario K1P 6N7, CANADA How to order Publications: by telephone 819-956-0425 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, 6

22、B1 11 Laurier Street Gatineau, Quebec by email ncr.cgsb-ongctpsgc-pwgsc.gc.ca on the Web www.tpsgc-pwgsc.gc.ca/ongc-cgsb NATIONAL STANDARD OF CANADA CAN/CGSB-4.2 No. 78.1-2001 Reaffirmed November 2013 Textile test methods Thermal protective performance of materials for clothing CETTE NORME NATIONALE

23、 DU CANADA EST DISPONIBLE EN VERSIONS FRANAISE ET ANGLAISE. Published July 2001 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

24、 General Standards Board (2001). No part of this publication may be reproduced in any form without the prior permission of the publisher. Prepared by the Canadian General Standards Board Approved by the CAN/CGSB-4.2 No. 78.1-2001 CGSB 2013 All rights reserved CANADIAN GENERAL STANDARDS BOARD Committ

25、ee on Textile Test Methods and Terminology (Voting membership at date of reaffirmation) General interest category Batcheller, J. University of Alberta Carrick, D. Consultant Davie, N. Consultant Liu, S. University of Manitoba Man, T.M. Consultant Tait, C. National Defence/DSSPM Producer category Ada

26、m, C. Tencate Protective Fabrics Canada Boivin, D. E.I. DuPont Co. Lawson, L. Davey Textile Solutions Leblanc, J.-M. Marv Holland Apparel Ltd. Schumann, E. Lincoln Fabrics Ltd. Taylor, V. Invista (Canada) Co. Regulator category Andersson, C. Health Canada User category Bourget, S. National Defence/Q

27、ETE DEntremont, E. Royal Canadian Mounted Police Izquierdo, V. Textile Technologies Centre Kohli, G. Sears Canada Inc. Larsen, A.-L. Exova Group Ltd. Litva, M. Canada Border Services Agency MacLeod, J. Public Works and Government Services Canada Tebbs, C. International Drycleaners Congress Secretary

28、 (non-voting) Grabowski, M. Canadian General Standards Board Acknowledgment is made for the translation of this National Standard of Canada by the Translation Bureau of Public Works and Government Services Canada. CGSB 2013 All rights reserved i CAN/CGSB-4.2 No. 78.1-2001 Reaffirmed November 2013 Pr

29、eface to the National Standard of Canada This National Standard of Canada has been reaffirmed by the CGSB Committee on Textile Test Methods and Terminology. Editorial changes have been made by the correction of the following paragraph: 11.1 Source of Referenced Publications The publications referred

30、 to in par. 3.1.1 may be obtained from the Canadian General Standards Board, Sales Centre, Gatineau, Canada K1A 1G6. Telephone 819-956-0425 or 1-800-665-2472. Fax 819-956-5740. E-mail ncr.cgsb-ongctpsgc-pwgsc.gc.ca. Web site www.tpsgc-pwgsc.gc.ca/ongc-cgsb. National Standard of CanadaTEXTILE TEST ME

31、THODS CAN/CGSB-4.2OttawaCanadaK1A 1G6Thermal Protective Performanceof Materials for ClothingNo. 78.1-20011. PURPOSE AND SCOPE1.1 This method rates textile materials for thermal resistance and insulation when exposed to a convective energy levelof 83 2 kW/m2for a short duration.1.2 It is applicable t

32、o woven fabrics, knit fabrics, battings, and nonwoven fabrics intended for use as clothing forprotection against a chance, short exposure to open flames. It is not intended for evaluating materials exposed toother thermal exposure such as radiant energy or molten metal splash.1.3 Procedures are prov

33、ided for testing single layer or multiple layer specimens, either in contact with the sensor or withan air space between specimen and sensor.1.4 This method is not applicable to textile materials that undergo complete flaming combustion when tested verticallyfor flame resistance.1.5 The testing and

34、evaluation of a product against this method may require the use of materials and/or equipment thatcould be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyoneusing this method has the responsibility to consult the appropriate authorities and to

35、 establish appropriate health andsafety practices in conjunction with any applicable regulatory requirements prior to its use.2. PRINCIPLE2.1 This method exposes a material to heat from a standard flame, measures the heat transferred and determines theexposure energy that would be expected to cause

36、a second-degree or partial thickness burn on human tissue incontact with, or close to, the opposite face.2.2 The heat flux of the exposure and that transferred through the test specimen are both measured with a coppercalorimeter. The rate at which the calorimeter temperature increases is proportiona

37、l to the heat energy received.2.3 Material performance is determined from the amount of heat transferred through the specimen. Effects of the flameexposure on the specimen are also observed.3. REFERENCED PUBLICATIONS3.1 The following publications are referenced in this method:3.1.1 Canadian General

38、Standards Board (CGSB)CAN/CGSB-4.2 Textile Test Methods:No. 1 Precision and Accuracy of MeasurementsNo. 2 Conditioning Textile Materials for TestingCAN/CGSB-4.175 Part 1/ISO 4880 Burning Behaviour of Textiles and Textile Products Vocabulary.3.2 A reference to a regulation is always to the latest iss

39、ue. A dated reference is to the issue specified. An undatedreference is to the latest issue, unless otherwise specified by the authority applying this method. The sources aregiven in the Notes section.1ReaffirmedNovember 20134. DEFINITIONSThe following definitions are applicable to this method:4.1 B

40、reak-open, n: in testing the thermal protective clothing, a material response evidenced by the formation of a holeor tear in the fabric that allows flame to pass through the textile.4.2 Charring, n: the formation of carbonaceous residue as the result of pyrolysis or incomplete combustion.4.3 Drippin

41、g, n: in testing the thermal protective clothing, a material response evidenced by the flowing of the fiberpolymer.4.4 Embrittlement, n: the formation of a brittle residue as the result of pyrolysis or incomplete combustion.4.5 Exposure energy to thermal end point (exposure energy), n: in testing th

42、e thermal protective clothing, thethermal energy input to a fabric specimen that is required to result in a heat transfer through the specimen sufficientto cause a second-degree burn in human tissue.4.6 Heat flux, n: the thermal intensity indicated by the amount of energy transmitted per unit area p

43、er unit time(kW/m2).4.7 Human tissue burn tolerance, n: in testing the thermal protective clothing, the amount of thermal energy thatcauses a second-degree burn in human tissue.4.8 Ignition, n: the initiation of combustion.4.9 Melting, n: in testing the thermal protective clothing, a material respon

44、se evidenced by the softening of the fibrepolymer.4.10 Response to open-flame exposure, n: in testing the thermal protective clothing, the observed effect of flameexposure on textile performance or deterioration.14.11 Shrinkage, n: a decrease in one or more dimensions of an object or material.4.12 T

45、hermal end point, n: in testing the thermal protective clothing, the crossing point of the sensor response curve onthe recorder chart or computer equivalent and the human tissue burn tolerance curve (par. 9.1.2).4.13 Thermal protective performance (TPP), n: the minimum exposure energy required to ca

46、use the accumulatedenergy received by the sensor to equal the energy that will cause a second-degree burn in human tissue.Other definitions concerning burning behaviour of textiles and textile products may be found in CAN/CGSB-4.175Part 1/ISO 4880.5. APPARATUS AND MATERIALS5.1 The arrangement of the

47、 individual components of the apparatus shall be as shown in Figure 1.5.1.1 Gas Flowmeter Any gas flowmeter (rotameter) with range to give flow equivalent to 2 L/min of air at ambientconditions.5.1.2 Burner A Meker type burner, with a 38 to 40 mm diameter grid top, suitable for use with propane gas.

48、25.1.3 Sensor Copper calorimeter3mounted in a fireproof insulating block4and constructed as shown in Figure 2. Themass of the calorimeter shall be 18 0.05 g before drilling holes to affix the thermocouples.1Material response is indicated by the terms break-open, melting, dripping, charring, embrittl

49、ement, shrinkage, and ignition.2Standard Grid-Top Adjustable Flame Burner, model number 03-902P, available from Fisher Scientific Ltd., 112 ColonnadeRoad, Nepean, Ontario, Canada K2E 7I6, telephone (800) 234-2996, fax (800) 463-2996, meets these requirements.3Available from R.B. Atlas Inc., 9 Canso Road, Rexdale, Ontario, Canada M9W 4L9. Telephone (416) 241-4647. Fax(416) 241-9008.4Monolux 500 (capeboard) meets these requirements.2 No. 78.1-20015.1.4 Recorder Any strip chart recorder with full scale deflection of at least 150C or 10 mV an