1、CAN/CGSB-4.31-2014Supersedes CAN/CGSB-4.31-95Terry towels and towellingICS 59.080.30National Standard of CanadaThe CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this standard has been developed, is a government agency within Public Works and Government Services Canada. CGSB is engage
2、d 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, governments, educ
3、ational 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 accredited by the Standards Council of Canada as a national standards-development orga
4、nization. The standards that it develops and offers as National Standards of Canada conform to the criteria and procedures established for this purpose by the Standards Council of Canada. In addition to standards it publishes as National Standards of Canada, CGSB produces standards to meet particula
5、r needs, in response to requests from a variety of sources in both the public and private sectors. Both CGSB standards and CGSB national standards are developed in conformance with the policies described in the CGSB Policy and Procedures Manual for the Development and Maintenance of Standards. CGSB
6、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 their improvement, which are always welcome, should be brought to the notice of the st
7、andards 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, is found in the CGSB Catalogue at our Web site www
8、.tpsgc-pwgsc.gc.ca/ongc-cgsb along with more information about CGSB products and services. 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 par
9、ticular 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 its use. Anyone using this standard has the responsibility to con
10、sult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use. CGSB neither assumes nor accepts any responsibility for any injury or damage that may occur during or as the result of tests, whereve
11、r 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 standard are expressly advised that determination of the validit
12、y 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 which is permissible within the limits of this Standard. Notes accompanying clauses do not
13、 include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. Further information on CGSB and it
14、s services and standards may be obtained from: The Manager Standards Division Canadian General Standards Board Gatineau, Canada K1A 1G6 The Standards Council of Canada (SCC) is the coordinating body of the Canadian standardization network, which is composed of people and organizations involved in th
15、e development, promotion and implementation of standards. Through the collaborative efforts of Canadian standardization network members, standardization is helping to advance the social and economic well-being of Canada and to safeguard the health and safety of Canadians. The networks efforts are ov
16、erseen by SCC. The principal objectives of SCC are to foster and promote voluntary standardization as a means of advancing the national economy, supporting sustainable development, benefiting the health, safety and welfare of workers and the public, assisting and protecting the consumer, facilitatin
17、g 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: consensus; equal access and effective participation by concerned interests; respect for
18、 diverse interests and identification of those who should be afforded access to provide the needed balance of interests; mechanism for dispute resolution; openness and transparency; open access by interested parties to the procedures guiding the standards development process; clarity with respect to
19、 the processes; and Canadian interest consideration as the initial basis for the development of standards. A National Standard of Canada (NSC) is a standard prepared or reviewed by an SCC-accredited SDO and approved by the SCC according to NSC approval requirements. Approval does not refer to the te
20、chnical content of the standard, as this remains the responsibility of the SDO. An NSC reflects a consensus of a number of capable individuals whose collective interests provide, to the greatest practicable extent, a balance of representation of general interests, producers, regulators, users (inclu
21、ding consumers) and others with relevant interests, as may be appropriate to the subject at hand. NSCs are intended to make a significant 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 rev
22、iew. 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: Standards Council of Canada 270 Albert Street, Suite 200 Ottawa, Ontario K1P 6N7, CANADA How to order Publications: by telephone 819-
23、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, 6B1 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-4.31-
24、2014Supersedes CAN/CGSB-4.31-95Terry towels and towellingPrepared by the Approved by the Canadian General Standards Board Published May 2014 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 G
25、overnment Services, the Minister responsible for the Canadian General Standards Board (2014). No part of this publication may 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-4.31-2014 CGSB
26、 2014 All rights reservedCANADIAN GENERAL STANDARDS BOARDCommittee on Institutional Textiles(Voting membership at date of approval)ChairBauerle, J.1ConsultantGeneral interest categoryBatcheller, J. University of AlbertaProducer categoryCollet, M. Logistik UnicorpLawson, L. Davey Textile Solutions, I
27、nc.Lyons, C. Mohawk Hospital Linen ServicesThompson, H. Cambridge Towel Company Inc.Regulator categorySzabo, J. Industry CanadaUser categoryKohli, G. Sears Canada Inc.MacLeod, J. Public Works and Government Services CanadaSecretary (non-voting)Jimenez, J. Canadian General Standards Board1General int
28、erestAcknowledgment is made for the translation of this National Standard of Canada by the Translation Bureau of Public Works and Government Services Canada.CAN/CGSB-4.31-2014 i CGSB 2014 All rights reservedContents1 Scope . 12 Normative references . 13 Classification 24 General requirements 25 Deta
29、iled requirements 26 Preparation for delivery . 47 Inspection 48 Notes 4Page1 CGSB 2014 All rights reservedCAN/CGSB-4.31-2014 Supersedes CAN/CGSB-4.31-95Terry towels and towelling1 ScopeThis National Standard of Canada applies to terry towels and towelling. It states the requirements for cotton and
30、cotton/polyester commercial towels and for cotton/polyester utility/institutional towels and towelling. The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This standard does not purport to address all the safety as
31、pects associated with its use. Anyone using this standard 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 Normative referencesThe following normative d
32、ocuments contain provisions that, through reference in this text, constitute provisions of this National Standard of Canada. The referenced documents may be obtained from the sources noted below.NOTE The addresses provided below were valid at the date of publication of this standard.An undated refer
33、ence is to the latest edition or revision of the reference or document in question, unless otherwise specified by the authority applying this standard. A dated reference is to the specified revision or edition of the reference or document in question. However, parties to agreements based on this Nat
34、ional Standard of Canada are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. 2.1 Canadian General Standards Board (CGSB)CAN/CGSB-4.2 Textile test methods:No. 5.1 Unit mass of fabricsNo. 9.2 Breaking strength of fabrics Grab m
35、ethod Constant-time-to-break principleNo. 14 Quantitative analysis of fibre mixturesNo. 15 Non-fibrous materials on textilesNo. 17 Cuprammonium fluidity of textile cellulose (withdrawn in 2008)No. 18.3/ISO 105-B02 Textiles Tests for colourfastness Part B02: Colourfastness to artificial light: xenon
36、arc fading lamp testNo. 22 Colourfastness to rubbing (crocking)No. 24 Colourfastness and dimensional change in commercial launderingCAN/CGSB-4.131 Cotton-covered or polyester-covered polyester threadCAN/CGSB-4.139 Polyester staple thread.2CAN/CGSB-4.31-2014 CGSB 2014 All rights reserved2.1.1 SourceT
37、he above 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. 2.2 International Organization for Standardization
38、(ISO)ISO 675 Textiles Woven fabrics Determination of dimensional change on commercial laundering near the boiling point.2.2.1 SourceThe above may be obtained from IHS Global Canada Ltd., 200-1331 MacLeod Trail SE, Calgary, Alberta T2G 0K3, telephone 613-237-4250 or 1-800-267-8220, fax 613-237-4251,W
39、eb site .3 Classification3.1 The towels and towelling shall be supplied in the following classes and types, as specified (see 8.1).3.1.1 ClassesClass A Commercial towelsClass B Utility/institutional towels and towelling.3.1.2 TypesType 1 CottonType 2 Cotton/polyester blend (minimum 80% cotton conten
40、t).4 General requirements4.1 The towels and towelling covered by this standard shall be free from imperfections and blemishes that may adversely affect their appearance or serviceability.4.2 For inspection purposes, imperfections and blemishes shall be considered defects when clearly visible at a no
41、rmal distance of approximately 1 m under good lighting conditions.5 Detailed requirements5.1 Materials5.1.1 Yarnsa. Pile Warp The pile warp yarns shall be singles, 100% cotton.b. Ground warp The ground warp yarns shall be singles or 2-ply carded cotton yarns, or single yarns spun from a blend of pol
42、yester and cotton fibres. When tested in accordance with CAN/CGSB-4.2 No. 14, the polyester content shall not exceed 65%.CAN/CGSB-4.31-2014 3 CGSB 2014 All rights reservedc. Weft The weft yarns shall be single carded cotton yarns or single yarns spun from a blend of polyester and cotton fibres. When
43、 tested in accordance with CAN/CGSB-4.2 No. 14, the polyester content shall not exceed 65%.5.1.2 Sewing thread Unless otherwise specified (see 8.1), the thread shall be R 40 tex in accordance with CAN/CGSB-4.131 or CAN/CGSB-4.139, Table 1. The colour of the sewing thread shall match the towel.5.2 Co
44、nstruction5.2.1 WeaveThe weave shall be a 3-pick terry. The ratio of feed of the pile warp to the ground warp shall not be less than 4 to 1.NOTE A ratio of 3.5 to 1 is acceptable for class B crested towels.5.2.2 Selvages The selvages shall be natural, pile-free and 6 mm wide on each side of the towe
45、l. Alternatively, towels may be multiwoven with a pile free strip separating each towel; this pile free strip when slit shall be turned in with the raw edges turned under (side hemmed) and securely lock-stitched or chain-stitched to form a 6 mm finished hem.5.2.3 End hemming The ends shall be pile f
46、ree for approximately 3 cm. Each end shall be turned in and with the raw edge folded under, lock-stitched through 2 mm gauge to a form a 1 cm finished hem.5.2.4 Stitching All stitchings shall not be less than two and not more than four stitches per centimetre. The ends of the stitchings, and any bre
47、aks in the thread during sewing operations, shall be securely backstitched.5.3 Design The design (cross stripes, pile-free areas, woven identifications, etc.) shall be as agreed between the purchaser and the supplier as specified (see 8.1).5.4 Colour The colour of the towels and towelling shall be a
48、s specified (see 8.1). When required to be white, the towels and towelling shall be given full commercial bleach and shall meet the requirements for Cuprammonium fluidity specified in Table 1.5.5 Sizes Unless otherwise specified (see 8.1), the dimensions of the finished towels and towelling shall be
49、 as specified below. The measurements shall be taken with the towel and towelling placed on a flat surface in a relaxed position.5.5.1 Tolerances The tolerances apply to the widths and lengths of the towels and to the width of the towelling. There is no restriction to tolerances on the plus (+) side, but there is a tolerance of 3% on the minus (-) side of the dimensions specified below.4CAN/CGSB-4.31-2014 CGSB 2014 All rights reserved5.5.2 Class A Towelsa. Bath: width 55 cm x leng
