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1、AS 2001.11995 Australian Standard Methods of test for textiles Part 1: Conditioning procedures Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 This Australian Standard was prepared by Committee TX/20, Methods of Test for Textiles. It was approved on behalf of the Council of Standards Australia
2、 on 5 July 1995 and published on 5 October 1995. The following interests are represented on Committee TX/20: Australian Chemical Specialities Manufacturers Association Australian Wool Research and Promotion Organization AWTA Textile Testing Commission Dyers and Finishers Association of Australia CSI
3、RO, Division of Wool Technology Department of Defence National Association of Testing Authorities, Australia Queensland University of Technology Retailers Council of Australia Society of Dyers and Colourists of Australia and New Zealand Textile Clothing and Footwear Council of Australia Textile Dist
4、ributors Association Textile Institute of South Australia The University of New South Wales Wool Textile Manufacturers of Australia Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of ame
5、ndments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Australian Standards and related publications will be found in the Standards Australia Catalogue of Publicati
6、ons; this information is supplemented each month by the magazine The Australian Standard, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Australian Standards, addressed to the he
7、ad office of Standards Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 92149. Accessed
8、 by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 AS 2001.11995 Australian Standard Methods of test for textiles Part 1: Conditioning procedures PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) 1 THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 0 7262 9975 8 Accessed by TAFE QUEENSLAND INSTITU
9、TES on 15 Oct 2007 AS 2001.1 19952 PREFACE This Standard was prepared by the Standards Australia Committee on Testing of Textiles to supersede AS 2001.11984, Methods of test for textiles, Part 1: Conditioning procedures. This Standard is one of a series of test methods which take cognizance of the w
10、ork of a technical committee of the International Organization for Standardization (ISO/TC 38, Textiles) but has been adapted to suit Australian conditions. This Standard takes particular account of ISO 1391973, TextilesStandard atmospheres for conditioning and testing, and as such not only specifie
11、s a standard reference procedure but three additional procedures to cater for situations where the material is relatively dry, where high volume testing is required and where rapid conditioning is required. Procedures for preconditioning, determining the relative humidity, measuring and verifying th
12、e standard atmosphere along with a compliance check sheet are described in the Appendices. CopyrightSTANDARDS AUSTRALIA Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where the Copyright Act allows and except where provided for be
13、low no publications or software produced by Standards Australia may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permissi
14、on and information on commercial software royalties should be directed to the head office of Standards Australia. Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a
15、 royalty or advice to Standards Australia. Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royalty payment provided such programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that mater
16、ial used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or wit
17、hout payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time. Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 3AS 2001.1 1995 CONTENTS Page FOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . .4 1SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 3DEFINITIONS . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . .5 4PRINCIPLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 5APPARATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 6METHODS . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 7CROSS-REFERENCE TO THIS STANDARD . . . . . . . . . . . . . . . . . . . . . . . . .8 APPENDICES APRECONDITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 BDETERMINATION OF RELATIVE
21、 HUMIDITYASPIRATED PSYCHROMETER METHOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 CVERIFICATION AND MONITORING OF STANDARD ATMOSPHERE. . .22 DRECOMMENDED SPECIFICATION FOR MERCURY-IN-GLASS THERMOMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、. . . . . . 25 ESTANDARD ATMOSPHERE FOR TEXTILE TESTING COMPLIANCE CHECK SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Originated as AS L5 1959. Previous edition AS 2001.1 1984. Second edition 1995. Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2
23、007 AS 2001.1 19954 FOREWORD This edition differs from the 1984 edition of this Standard in that it clarifies a number of aspects which may have led to misinterpretations. The tolerances for the specified conditions have also been changed to reflect a more realistic set of conditions which can be ob
24、tained and measured using the plant/equipment available in most Australian laboratories. In addition, the cycle range has been specified to avoid excessive fluctuations of conditions, even though the average temperature and relative humidity over a 1 h period may meet the specified conditions. Furth
25、er, detailedinformationconcerningthe use of the aspiratedpsychrometerfor determining relative humidity, and a table for converting the wet and dry-bulb temperatures to percent relative humidity has been provided (see Table B3 in Appendix B). Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 5AS
26、2001.1 1995 STANDARDS AUSTRALIA Australian Standard Methods of test for textiles Part 1: Conditioning procedures 1SCOPEThis Standard sets out procedures for conditioning samples and specimens of textile materials prior to testing. Four procedures are described as follows: (a) Method Athe standard re
27、ference method which shall be used in case of dispute. (b) Method Ba method for materials which are relatively dry. (c) Method Ca method for high volume testing. (d) Method Da method for rapid conditioning. 2REFERENCED DOCUMENTSThe following documents are referred to in this Standard: ISO 139Textile
28、sStandard atmospheres for conditioning and testing 386Liquid-in-glass laboratory thermometersPrinciples of design, construction and use 3DEFINITIONSFor the purpose of this Standard, the definitions below apply. 3.1Conditioninga procedure whereby test samples are brought to equilibrium with an atmosp
29、here having a specified temperature and relative humidity. 3.2Moisture equilibriumthe condition attained when two successive weighings, at an interval of 15 min, of the material or sample freely exposed to the atmosphere in an air- conditioned laboratory or chamber, show a change in mass of not more
30、 than 0.1 percent of the last mass recorded. 4PRINCIPLEThe textile material is brought to moisture equilibrium with a standard atmosphere from the dry side by ensuring that it is in approximate equilibrium with an atmosphere of less than 15 percent relative humidity before freely exposing it to the
31、standard atmosphere. 5APPARATUSThe required conditioning apparatus shall be as specified in either Item (a) or (b) below. (a)Air-conditioningequipmentcapableofprovidingandmaintainingastandard atmosphere of 65 3 percent relative humidity at a temperature of 20 2C (as specified in Appendices B and C)
32、in a laboratory or chamber. NOTE: With some air conditioning equipment it may be necessary to control the temperature to within closer tolerances to achieve the specified tolerances for relative humidity. (b)A rapid conditioning device capable of rapidly conditioning samples to moisture equilibrium
33、similar to that obtained in the standard atmosphere as specified in Item (a) above. COPYRIGHT Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 AS 2001.1 19956 6METHODS 6.1GeneralThe procedures for the various methods shall be as specified in Clauses 6.2 to 6.5. 6.2Method AStandard reference met
34、hodThe procedure for the standard reference method shall be as follows: (a)If necessary remove excess liquid water from the textile material by normal laboratory procedures. (b)Precondition the textile material in accordance with Appendix A. (c)Remove the textile material from the preconditioner and
35、 expose it (in as open a manner as possible) to the standard atmosphere in the air-conditioned laboratory or chamber until moisture equilibrium has been attained. NOTE: See Clause 3 for the definition of moisture equilibrium. It is essential that when exposing the material in the oven or in the air-
36、conditioned space, all parts of the material shall be freely accessible to the atmosphere. The following essential requirements shall therefore be observed: (i)Fibre (e.g. raw or scoured wool)shall be of approximate uniform density no greater than 20 kg/m3and arranged so as to expose the maximum sur
37、face area, e.g. spread in layers on open wire shelves. NOTE: Samples held in mesh bags or other containers may take longer to condition. (ii)Silver, roving and the likeshall be removed from any package and arranged so that all parts of the sample are freely exposed to the air. (iii)Yarnsshall prefer
38、ably be in the form of hanks, or wound on open spools or frames that are arranged so that all parts are freely exposed to the air. For tests where unwinding from a package may unduly influence the property to be measured, testing may be performed on the package. (iv)Fabrics, carpets, and the likesha
39、ll be hung, or laid flat, singly on open wire shelves to allow free access of air to all surfaces. If the material must be folded, all surfaces shall be as freely exposed to the air as is practicable. If the dimensional change of the material is to be determined, it is to be noted that the orientati
40、onof the material during conditioning may influence the test results. Accordingly, in order to ensure that results are appropriately assessed, the orientation of the material during conditioning shall be specified in the report. 6.3Method BMethodfor relatively dry materialWhere it can be established
41、 that the material has been brought to equilibrium with an atmosphere of relative humidity less than 15 percent and has not subsequently been exposed to moisture or to air of a relative humidity greater than 15 percent, it shall be placed in a sealed container for subsequent exposure to the standard
42、 atmosphere in accordance with Clause 6.2(c). The material shall be exposed to the standard atmosphere within 1 h of it having been placed in the container. 6.4Method CMethod for high rate of routine testingThe procedure for a high rate of routine testing shall be as follows: (a)If the materials are
43、 relatively dry, in accordance with Method B, they need not be preconditioned. Otherwise, they shall be preconditioned as described in Clause 6.2(b). (b)Determine the time to condition each of at least 20 samples of material on each of at least 5 days (i.e. at least 100 determinations in all), using
44、 the method described in Clause 6.2(c). COPYRIGHT Accessed by TAFE QUEENSLAND INSTITUTES on 15 Oct 2007 7AS 2001.1 1995 NOTES: 1This method may be applied if the rate of testing is high and the materials are highly uniform in size and condition. 2For any example, the time to condition is the duratio
45、n of exposure until the last weighing used to establish that moisture equilibrium has been attained. 3See Clause 3.2 for the definition of moisture equilibrium. (c)Determine the average time to condition (Tav) for all samples and the standard deviation(s) of the time to condition from the data obtai
46、ned in Step (b) above. (d)For routine testing, the standard exposure time shall be equal to the average time to condition plus 3.5 times the standard deviation, i.e. Standard exposure time = Tav+ 3.5 s where Tav= the average time to condition as determined is Step (c) s= the standard deviation of th
47、e time to condition as determined in Step (c) above. (e)To monitor the control of exposure conditions, ensure that samples attain moisture equilibrium. Routine checks following the procedures of Steps (a) to (d) above shall be undertaken at intervals of not more than 12 months, or when any character
48、istic of the samples changes significantly. NOTE: See Clause 3.2 for the definition of moisture equilibrium. 6.5Method DMethod when conditioningisrequiredrapidly There maybe circumstances when it is necessary to condition materials as rapidly as possible. This involves the use of rapid preconditione
49、rs and rapid conditioners. Where the samples or specimens are uniform in size and condition (usually associated with high volumes of testing), the procedure can be standardized and verified against the standard reference method. The procedures to be used in establishing the conditions of operation shall be as follows: (a)Preconditionthe samples or specimens in accordancewith Paragraph A3.2 of Appendix A. No loss of matter (other than water vapour) shall occur, particularly between successive weighings as referred to in Step (c) below. (b)At least 100 sam
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