CAN CGSB-155 20-2017 Workwear for protection against hydrocarbon flash fire and optionally steam and hot fluids.pdf

1、CAN/CGSB-155.20-2017Supersedes CAN/CGSB-155.20-2000National Standard of CanadaCanadian General Standards BoardWorkwear for protection against hydrocarbon flash fire and optionally steam and hot fluidsThe CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this standard has been developed,

2、is a government agency within Public Services and Procurement 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 in

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6、olicy and Procedures Manual for the Development and Maintenance of Standards.CGSB standards are subject to review and revision to ensure that they keep abreast of technological progress. CGSB will initiate the review of this standard within five years of the date of publication. Suggestions for thei

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9、 remains the responsibility 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 sa

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11、sponsibility for 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

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20、odic review.The responsibility for approving standards as NSCs rests with:Standards Council of Canada 55 Metcalfe Street, Suite 600 Ottawa, Ontario K1P 6L5, CANADAby telephone 819-956-0425 or 1-800-665-2472by fax 819-956-5740by mail CGSB Sales Centre Gatineau, Canada K1A 1G6in person Place du Portag

21、e Phase III, 6B1 11 Laurier Street Gatineau, Quebecby email ncr.cgsb-ongctpsgc-pwgsc.gc.caon the Web www.tpsgc-pwgsc.gc.ca/ongc-cgsb/index-eng.htmlHow to order Publications:Published November 2017 by the Canadian General Standards Board Gatineau, Canada K1A 1G6 HER MAJESTY THE QUEEN IN RIGHT OF CANA

22、DA, as represented by the Minister of Public Services and Procurement, the Minister responsible for the Canadian General Standards Board (2017).No part of this publication may be reproduced in any form without the prior permission of the publisher.Workwear for protection against hydrocarbon flash fi

23、re and optionally steam and hot fluidsCETTE NORME NATIONALE DU CANADA EST DISPONIBLE EN VERSIONS FRANAISE ET ANGLAISE.ICS 13.340.10NATIONAL STANDARD OF CANADA CAN/CGSB-155.20-2017Supersedes CAN/CGSB-155.20-2000CAN/CGSB-155.20-2017 CGSB 2017 All rights reservedCANADIAN GENERAL STANDARDS BOARDCommitte

24、e on workwear for protection against flash fires(Voting membership at date of approval)Chair (Non-voting)King, D. Davey Textile Solutions Inc.General interest categoryAckerman, M. MYAC Consulting Inc.Batcheller, J. University of AlbertaBussoli, M. Apparel Innovation CentreDolez, P. The Institute of

25、Textile Science (ITS)Eigner, M. Aurora Loss Prevention Ltd.Fennell, D. Dave Fennell Safety Inc.Furnald, M. ConsultantHadfield, M. Strathcona CountyIzquierdo, V. CTT Group (testing)Mlynarek, J. CTT Group (research)Paskaluk, S. University of Alberta, Protective Clothing and Equipment Research Facility

26、Schumann, E. ConsultantShaw, H. ConsultantTait, C. National DefenceProducer categoryAdam, C. Filspec Inc.Black, C. Mount Vernon Mills Inc.Brire, J.-S. Textiles Monterey 1996 Inc. Clark, P. Apparel Solutions InternationalCliver, J. Milliken the folded specimen shall be secured in the specimen holder

27、with folded edge to be tested.7.2.1.2 Component testing Components such as visibility trim and slide fastener that are not large enough to be cut to the required specimen size shall be sewn onto a CAN/CGSB-155.20 compliant fabric for testing using flame resistant thread. The specimen shall be constr

28、ucted so that only the component itself is tested, as shown in Figure 1.CAN/CGSB-155.20-201711 CGSB 2017 All rights reserved7.2.1.2.1 Visibility trim testing If a trim is comprised of more than one material across its width (see Figure 1), separate tests shall be performed so that each material is i

29、mpinged directly by the flame. The trim shall be attached for testing (stitched using flame resistant thread or heat transferred as per the intended application method) onto a strip of the garment fabric, or equivalent FR fabric meeting this standard, but shall not be stitched across the bottom edge

30、.Figure 1 Flammability test: flame and specimen positioning7.3 Thermal protection test7.3.1 Specimens shall be tested for thermal protective performance in accordance with CAN/CGSB-4.2 No. 78.1, in the spaced configuration.7.3.1.1 The composite of all material system components in a material system

31、composite shall be tested in accordance with CAN/CGSB-4.2 No. 78.1.7.4 Heat resistance and thermal shrinkage tests7.4.1 Specimens For the heat resistance and thermal shrinkage tests, cut three specimens 380 x 380 10 mm (14.96 x 14.96 0.39 in.).7.4.1.1 Specimens smaller than the required specimen siz

32、e (e.g. hardware and slide fastener tape) shall be affixed to a CAN/CGSB-155.20 compliant fabric of the correct specimen size. Specimens shall be affixed to the fabric as they would normally be affixed to the garment.Material A Material B Material A FR FabricNarrow speciminFR FabricReflective trim N

33、arrow specimenPoints of flame impingement for each materialPoints of flame impingement12CAN/CGSB-155.20-2017 CGSB 2017 All rights reserved7.4.2 Procedure Suspend each specimen by metal hooks at the top of the specimen in a forced air circulating oven at 260 3C for a minimum of 5.00 min and a maximum

34、 of 5.25 min, beginning when the oven has recovered to an air temperature of 260 3C. Oven recovery time after the door is closed shall not exceed one minute. Expose the specimen to the circulating air so that it is at least 50 mm from the oven surface or other specimens and that the air flow is para

35、llel to the plane of the material.7.4.2.1 Heat resistance results Remove the specimens from the oven, remove the hooks from the specimen, allow a minimum cooling time of 30 s, and report any evidence of melting or ignition for protective fabrics and other textile components. For primary closures, re

36、port whether closures can be opened by hand after the test is complete.7.4.2.2 Thermal shrinkage results Remove the specimens from the oven, remove the hooks from the specimen, lay the specimen flat on a smooth surface and allow a minimum cooling time of 30 s. Measure all specimens to determine ther

37、mal shrinkage. Report results as the average of all three specimens to determine pass/fail.7.5 Melting pointThread used in the construction of the garment shall be tested in accordance with ASTM D7138. 7.6 Manikin test (flash fire)7.6.1 Test specimens shall be evaluated for protection from flash fir

38、e simulations in accordance with ASTM F1930.7.6.1.1 Material system composites to be tested shall be used to construct the standard garment design, as specified in par. 8.3.2 of ASTM F1930. Three specimens shall be tested.7.6.1.2 For FR rainwear garments, two as-sold specimen garments shall be teste

39、d in addition to the requirements of 7.6.1.1.7.6.1.3 For FR workwear garments that are designated on the care label to be washed, specimens shall be tested after one cycle of washing and drying as specified in 7.1.1.For FR rainwear garments that are designated on the care label to be washed, specime

40、ns shall be tested after one cycle of washing and drying as specified by the manufacturer. If no instructions are given, specimens shall be tested after one cycle of washing and drying as specified in 7.1.1.7.6.1.4 For FR workwear garments that are designated on the care label to be dry-cleaned, spe

41、cimens shall be tested after one cycle of dry cleaning as specified in 7.1.2.For FR rainwear garments that are designated on the care label to be dry-cleaned, specimens shall be tested after one cycle of dry cleaning as specified by the manufacturer. If no instructions are given, specimens shall be

42、tested after one cycle of washing and drying as specified in 7.1.2.7.6.1.5 For FR workwear garments that are designated on the care label to be either washed or dry-cleaned, specimens shall be tested after one cycle of washing and drying as specified in 7.1.1, or after one cycle of dry cleaning as s

43、pecified in 7.1.2.For FR rainwear garments that are designated on the care label to be either washed or dry-cleaned, specimens shall be tested after one cycle of washing and drying, or after one cycle of dry cleaning as specified by the manufacturer. CAN/CGSB-155.20-201713 CGSB 2017 All rights reser

44、vedIf no instructions are given, garments shall be tested after one cycle of washing and drying as specified in 7.1.1, or after one cycle of dry cleaning as specified in 7.1.2.7.6.2 Procedure7.6.2.1 Specimens shall be tested in accordance with ASTM F1930 using an exposure heat flux of 84 4.2 kW/m2(2

45、.0 0.1 cal/cm2s) with an exposure time of 3.0 0.1 s.7.6.2.2 The manikin shall be dressed in 170 8.5 g/m2(5.01 0.25 oz/yd2), jersey knit, 100% cotton underwear briefs and 140 7 g/m2(4.13 0.21 oz/yd2) jersey knit, 100% cotton short-sleeve crew-neck t-shirt before the garment specimen is placed on the

46、manikin.7.6.3 Report7.6.3.1 The predicted percent burn injury based on the total surface area covered by sensors, excluding hands and feet, for each specimen shall be reported.7.6.3.2 The average predicted burn injury of the three standard design specimens shall be calculated and reported. This aver

47、age predicted burn injury shall be used to determine pass/fail performance for garment fabrics.7.6.3.3 Observations should be reported regarding the behaviour of specimen garments during the test and their condition after the exposure. Relevant observations potentially include, but are not limited t

48、o: melting, formation of holes in specimen garments, garment shrinkage, condition of closures and seams, smoke produced and afterflame characteristics of fabrics.7.7 Leak resistance / waterproofness7.7.1 FR rainwear test specimens shall be tested in accordance with ASTM D3393 at a water pressure of

49、207 kPa (30 psi).7.7.2 FR rainwear seams shall be tested in accordance with AATCC 127 test method at a water pressure of 20.7 kPa (3 psi) for 2 min.7.7.3 Use a pump device to achieve 20.7 kPa (3 psi) if extension of the water column is not practical.7.8 Steam and hot fluid tests (small-scale)7.8.1 Material system composites shall be tested for protection from steam in accordance with Annex A.7.8.1.1 Tests shall be performed on at least five specimens.7.8.1.2 Test shall be performed with a 10.0 0.1 s exposure to steam at 207