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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 11858:1999 ICS 59.
2、080.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Textile floor coverings Determination of friability of attached foams Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared u
3、nder the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 BSI 11-1999 ISBN 0 580 35235 8 BS ISO 11858:1999 Amendments issued since publication Amd. No.DateComments National foreword T
4、his British Standard reproduces verbatim ISO 11858:1999 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/3, Textile floor coverings, which has the responsibility to: aid enquirers to understand the text; present to the re
5、sponsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on
6、 request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of
7、the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. S
8、ummary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii and iii, a blank page, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na
9、, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI A Reference number ISO 11858:1999(E) INTERNATIONAL STANDARD ISO 11858 First edition 1999-10-15 Textile floor coverings Determination of friability of attached foams Revtements de sols textiles Dtermination de la friabilit des sous-couc
10、hes en mousse Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) ii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prep
11、aring International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in
12、liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft Internat
13、ional Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard 11858 was prepared by Technical Committee ISO/TC 38, Textiles, s
14、ubcommittee SC 12 Textile floor coverings. International Standard ISO11858 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 12 Textile floor coverings. Annex A forms a normative part of this International Standard. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:
15、48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) iii Introduction Textile floor coverings can be rolled with the use-surface towards the centre. As a result, any attached foam backing will be on the outside of the roll and can be subjected to various abrasive actions prior to and duri
16、ng installation. These actions can result in the ready crumbling of an attached foam backing if it is easily friable. Also, when textile floor coverings are displayed for sale in a waterfall or similar mode, customers frequently use strong thumb action to apply frictional stress to an attached foam
17、backing, which will be considered unsatisfactory if it breaks down. Thus there is a need for a test to assess the friability of attached foam backings on the new, unaged carpet. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy:
18、sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 11858:1999(E) 1 Textile floor coverings Determination of friability of attached foams 1 Scope 1.1 This International Standard specifies a procedure for assessing the friability of f
19、oam backings attached to textile floor coverings. 1.2 This International Standard is not suitable for evaluating the propensity of a foam backing to break down after installation, since such break-down is invariably due to a combination of flexing fatigue and oxidation, factors which are not covered
20、 in this International Standard. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not
21、apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members
22、of ISO and IEC maintain registers of currently valid International Standards. ISO 105-A01:1994, Textiles Tests for colour fastness Part A01: General principles of testing ISO 105-X12:1993, Textiles Tests for colour fastness Part X12: Colour fastness to rubbing. ISO 139:1973, Textiles Standard atmosp
23、heres for conditioning and testing. ISO 1957:1), Machine-made textile floor coverings Sampling and cutting specimens for physical tests. ISO 2424:1992, Textile floor coverings Vocabulary. 3 Term and definition For the purposes of this International Standard, the following term and definition applies
24、 in addition to relevant definitions in ISO 2424. 3.1 friability ease of breaking down or crumbling under an applied stress 1) To be published. (Revision of ISO 1957:1986) Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) 2 4
25、 Principle The attached foam backing of a textile floor covering is rubbed with a rod having a hemispherical end covered with a standard cotton fabric. The degree of break down of the foam-backing is assessed by means of photographic standards (see annex A). 5 Apparatus and materials 5.1 A suitable
26、device for rubbing the test specimen. 5.1.1 Apparatus capable of moving a rubbing finger to and fro in a straight line along a 100 mm track on the specimen (a suitable piece of equipment is that used for testing fastness to wet and dry rubbing e.g in ISO 105-X12:1993). 5.1.2 Rubbing finger, comprisi
27、ng a cylinder of (16 1) mm diameter with a hemispherical end that rubs the specimen; the downward force exerted by the finger shall be (9,0 0,1) N (see Figure 1). 5.2 A sheet metal frame, suitable for holding a test specimen on the base of the apparatus (see Figure 2). The frame shall be (200 5) mm
28、long and have a U cross-section with the bottom of the U (50 3) mm wide (the width of the tester base) and each leg (25 2) mm. The (200 3 50) mm face of the frame shall have an aperture cut in it (180 5) mm 3 (25 2) mm in size, in order to expose a sufficient area of the specimen for testing. 5.3 Co
29、mbed cotton cloth, bleached and free from sizes and finishes, in a plain weave with approximately (32 3 33) yarns/cm, cut into (50 2) mm squares (see ISO 105-X12:1993). 5.4 Light box viewing cabinet, uniform grey in colour and of suitable size to take the tested specimen and photographic scale with
30、provision for illuminating test specimens with a low angle of illumination (10 1) to a minimum of 600 lx. (A suitable piece of equipment is used for viewing fastness specimens and is given in ISO 105-A01.) 5.5 Photographic standards, in accordance with annex A. 6 Sampling 6.1 Sampling shall be in ac
31、cordance with the principles of ISO 1957, and each laboratory sample shall be full width 3 (250 10) mm in length. 6.2 In order to evaluate possible side-to-middle variations in curing, specimens shall be taken from the centre and from within 200 mm of each side of the sample. Two specimens, one leng
32、thwise and one crosswise, shall be taken from each of the three locations. 7 Atmosphere for conditioning and testing Test specimens shall be conditioned for 24 h in the standard atmosphere specified in ISO 139 prior to testing. Testing shall be carried out in the same standard atmosphere. 8 Procedur
33、e 8.1 Place a specimen, foam side up, on the base and hold it in place by means of the metal frame (5.2) (Figure 2). 8.2 Place a new dry square of white cotton test cloth (5.3) over the hemispherical end of the rubbing finger (5.1.2) in such an orientation that it is at a 45 bias to the direction of
34、 travel of the rubbing finger during the test. Fasten the cloth in place with a circular spring clip. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) 3 Dimensions in millimetres Figure 1 Device for rubbing the test specimen
35、 Dimensions in millimetres Figure 2 Frame for holding test specimen 8.3 Position the rubbing finger so that it is at the extremity of its stroke and lower it on to the test specimen. Operate the apparatus (5.1.1) for two complete strokes, i.e. two complete backward and forward movements. 8.4 Place e
36、ach test specimen on a horizontal surface in the viewing cabinet (5.4), orientated so that the length of the specimen lies in the direction of viewing of the observer. Assign a rating by reference to the photographic standards (5.5, see annex A). Whole-number ratings shall be made by two operators a
37、cting independently and the results then averaged. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) 4 9 Precision of results No precision data for this method of test are currently available. Interlaboratory trial data are b
38、eing obtained and it is intended that a precision statement based on these will be added at the first revision. 10 Test Report The test report shall include the following information: a) reference to this International Standard, i.e. ISO 11858; b) identification of the sample; c) individual ratings
39、for the six test specimens, each being identified as to its location (side or centre) and as to direction; d) the date of the test. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 11858:1999(E) 5 Annex A (normative) Photographic standard
40、s Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 02:04:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11858:1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
41、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the inte
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49、en permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffield
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