1、 CAN/CGSB-4.2 No. 42-M91 Supersedes CAN/CGSB-4.2 Method 42 July 1977 Extended April 1997 Reaffirmed November 2013 National Standard of Canada ICS 59.080.01 Textile test methods Copper content of textiles The CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this standard has been develop
2、ed, is a government 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 re
3、levant interests 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 ha
4、s been accredited by the Standards Council of Canada as a national standards-development organization. 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 stan
5、dards it publishes as National Standards of Canada, 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 CGSB national standards are developed in conformance with the policies described in
6、the CGSB Policy 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. Suggestio
7、ns for their improvement, which are always welcome, should be brought to the notice of the 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
8、and amendments, and ordering instructions, is found in the CGSB Catalogue at our Web site www.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
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
10、fety aspects 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. CGSB neither assumes nor accepts any re
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
12、 patent rights. Users of this standard 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 B
13、oard 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 the development, promotion and implementation of standards. Through the collaborative efforts of Canadian st
14、andardization 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 overseen by SCC. The principal objectives of SCC are to foster and promote voluntary standardization as a me
15、ans of advancing the national economy, supporting sustainable development, benefiting the health, safety and welfare of workers and the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in relation to standardizatio
16、n. 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 diverse interests and identification of those who should be afforded access to provide the needed balance
17、 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 the processes; and Canadian interest consideration as the initial basis for the development of standards.
18、 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 technical content of the standard, as this remains the responsibility of the SDO. An NSC reflects a consensu
19、s 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 (including consumers) and others with relevant interests, as may be appropriate to the subject at hand. NSCs are
20、 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 review. Users of NSCs are cautioned to obtain the latest edition from the SDO that publishes the standard. Th
21、e 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 819-956-0425 or 1-800-665-2472 by fax 819-956-5740 by mail CGSB Sales Centre Gatineau, Canada K1A 1G6 in perso
22、n 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-4.2 No. 42-M91 Supersedes CAN/CGSB-4.2 Method 42 July 1977 Extended April 1997 Reaffirmed November 2013 Textile
23、 test methods Copper content of textiles CETTE NORME NATIONALE DU CANADA EST DISPONIBLE EN VERSIONS FRANAISE ET ANGLAISE. Published June 1991 by the Canadian General Standards Board Gatineau, Canada K1A 1G6 Minister of Supply and Services Canada 1991 No part of this publication may be reproduced in
24、any form without the prior permission of the publisher. Prepared by the Canadian General Standards Board Approved by the CAN/CGSB-4.2 No. 42-M91 CGSB 2013 All rights reserved CANADIAN GENERAL STANDARDS BOARD Committee on Textile Test Methods and Terminology (Voting membership at date of reaffirmatio
25、n) 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 Adam, C. Tencate Protective Fabrics Canada Boivin, D. E.I. DuPont Co. Lawson, L. Davey T
26、extile 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/QETE DEntremont, E. Royal Canadian Mounted Police Izquierdo, V. Textile Technologies C
27、entre 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 (non-voting) Grabowski, M. Canadian General Standards Board Acknowledgment is made f
28、or 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. 42-M91 Supersedes CAN/CGSB-4.2 Method 42 July 1977 Extended April 1997 Reaffirmed November 2013 Preface to the National St
29、andard of Canada This National Standard of Canada has been extended and reaffirmed by the CGSB Committee on Textile Test Methods and Terminology. Editorial changes have been made by the correction of the following paragraph: 8.1 Source of Referenced Publications The publications referred to in par.
30、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. Supersedes CAN/CGSB-4.2Method 42July 1977ExtendedApril
31、 1997Reaffirmed1RYember 20136. 6.1 6.2 6.3 6.4 6.5 6.6 7. 7.1 7.2 7.3 8. 8.1 PROCEDURE Accurately determine the mass of each specimen, place it in a porcelain or silica dish and ash it, as far as possible, over a small flame. Complete the ashing in a muffle furnace at approximately 600C. Dissolve th
32、e residue in 25 mL concentrated nitric acid. Filter the mixture into 100 mL volumetric flask, rinsing it with sufficient deionized water to insure complete transfer. Make up the 100 mL with deionized water. Prepare at least three standard solutions containing known copper concentrations. Install a c
33、opper lamp in the spectrophotometer. Set the wave length at 324.7 nm, the slit opening at 0.7 nm and adjust the aidacetylene ratio to obtain a lean flame. Measure the absorption values of the standards and prepare a calibration curve, plotting absorption against copper content. Measure the absorptio
34、n of the specimen solution. From the calibration curve, determine the copper content of the specimen and calculate the percentage of copper based on the original mass of the specimen. REPORT Report the following information: The percentage of copper for each specimen and the average percentage copge
35、r. State of the specimen, i.e., in equilibrium with ambient air or conditioned in accordance with CAN/CGSB-4.2 NO. 2-M. The number of this method: CAN/CGSB-4.2 No. 42-M91. NOTES Source of Referenced Publications - The publications referred to in par. 3.1.1 may be obtained from the Canadian General Standards Board, Sales Unit, Ottawa, Canada KIA 1G6. Telephone (819) 956-0425 or 956-0426. Fax (819) 956-5644. 2 NO. 42-M91
