1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 26082-2:2012Leather Physical andmechanical test methods forthe determination of soilingPart 2: Tumbling method (ISO26082-2:2012)BS EN ISO 26082-2:2012 BRITISH STANDARDN
2、ational forewordThis British Standard is the UK implementation of EN ISO26082-2:2012.The UK participation in its preparation was entrusted to TechnicalCommittee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can beobtained on request to its secreta
3、ry.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 67879 0ICS 59.140.30Compliance with a British Standard cannot conf
4、er immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 26082-2 July 2012 ICS 59.140.30 Englis
5、h Version Leather - Physical and mechanical test methods for the determination of soiling - Part 2: Tumbling method (ISO 26082-2:2012) Cuir - Mthodes dessai physique et mcanique de dtermination de la salissure - Partie 2: Mthode par culbutage (ISO 26082-2:2012) Leder - Physikalische und mechanische
6、Prfungverfahren zur Bestimmung des Anschmutzens - Teil 2: Trommelverfahren (ISO 26082-2:2012) This European Standard was approved by CEN on 9 June 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
7、us of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ge
8、rman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croat
9、ia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Un
10、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 26082-
11、2:2012: EBS EN ISO 26082-2:2012EN ISO 26082-2:2012 (E) 3 Foreword This document (EN ISO 26082-2:2012) has been prepared by Technical Committee CEN/TC 289 “Leather“, the secretariat of which is held by UNI, in collaboration with IULTCS “International Union of Leather Technologists and Chemists Societ
12、ies“. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possibility that
13、some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to i
14、mplement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma
15、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN ISO 26082-2:2012ISO 26082-2:2012(E) IULTCS/IUP 53-2:2012(E) ISO 2012 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
16、member bodies). The work of preparing 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, govern
17、mental and non-governmental, in 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 Di
18、rectives, Part 2. The main task of technical committees is to prepare International Standards. Draft International 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 b
19、odies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 26082-2 was prepared by the European Committee for Standardization (CEN) Te
20、chnical Committee CEN/TC 289, Leather, in collaboration with the Physical Tests Commission of the International Union of Leather Technologists and Chemists Societies (IUP Commission, IULTCS) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). IULTCS, ori
21、ginally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IULTCS has three Commissions, which are responsible for establishing international methods for sampling and the testing of leather. ISO recognizes IULT
22、CS as an international standardizing body for the preparation of test methods for leather. ISO 26082 consists of the following parts, under the general title Leather Physical and mechanical test methods for the determination of soiling: Part 1: Rubbing (Martindale) method Part 2: Tumbling method BS
23、EN ISO 26082-2:2012BS EN ISO 26082-2:2012INTERNATIONAL STANDARD ISO 26082-2:2012(E)IULTCS/IUP 53-2:2012(E) ISO 2012 All rights reserved 1Leather Physical and mechanical test methods for the determination of soiling Part 2: Tumbling method 1 Scope This part of ISO 26082 specifies a tumbling method wh
24、ich is intended to determine the resistance of all forms of leather to visible soiling through repeated contact with soiled objects. It provides a physical pretreatment routine for leathers that may be vulnerable to loss of soiling resistance in service. 2 Normative references The following referenc
25、ed documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 105-A02, Textiles Tests for colour fastness Part A02: Grey scale fo
26、r assessing change in colour ISO 105-A03, Textiles Tests for colour fastness Part A03: Grey scale for assessing staining ISO 105-A04, Textiles Tests for colour fastness Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics ISO 105-F09, Textiles Tests for colo
27、ur fastness Part F09: Specification for cotton rubbing cloth ISO 2418, Leather Chemical, physical and mechanical and fastness tests Sampling location ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning ISO 12947-1, Textiles Determination of the abrasion resistance of
28、fabrics by the Martindale method Part 1: Martindale abrasion testing apparatus 3 Principle A controlled soiling treatment comprising multiple impacts with soiled felt pads is applied to a specimen. This is achieved by tumbling the felt pads within a rotating container into one end of which the speci
29、men is fixed. The change in colour of a standard fabric fixed at the other end of the rotating cylinder is used to determine the end-point of the soiling treatment. A pretreatment to simulate wear may be applied to leathers that are vulnerable to a loss of soiling resistance in service. BS EN ISO 26
30、082-2:2012ISO 26082-2:2012(E) IULTCS/IUP 53-2:2012(E) 2 ISO 2012 All rights reserved4 Reagents 4.1 Synthetic sebum1), containing (mass fractions): Free fatty acids 18,0 % Beef tallow 32,8 % Fatty acid triglycerides 3,6 % Lanoline 18,3 % Cholesterol 3,7 % Hydrocarbon mixture 12,0 % Stearate mixture (
31、cutina type) 11,6 % 4.2 Acetone (GPR). 4.3 Butanone (GPR). 4.4 White spirit (CAS No. 64742-48-9) (GPR). 4.5 Colloidal graphite2), having (18 0,5) % graphite in a water-based dispersion that is miscible with the synthetic sebum solution. 5 Apparatus Use usual laboratory apparatus and, in particular,
32、the following. 5.1 Suitable tumbling soiling machine3)(see Figure 1), capable of rotating at (24 2) r/min with the facility to change the direction of rotation at 10 min operating intervals, incorporating the following: at least four cylinders each of which is of internal length (300 10) mm, and of
33、internal diameter (100 5) mm; equipped at each end with a removable lid which maintains the required internal cylinder length and an annular test specimen retaining collar of internal diameter of not less than 75 mm; located lengthways in the plane of rotation; 1) A suitable product is: Synthetic Se
34、bum 09 D, available from WFK Testgewebe GmbH, Christenfeld 10, D-41379 Bruggen-Bracht, Germany. This information is given for the convenience of users of this part of ISO 26082 and does not constitute an endorsement by ISO of this product. 2) A suitable product is: Aquadag 18 %, available from Aches
35、on Industries (Europe) Ltd., c/o Postbox 1, 9679 ZG Scheemda, The Netherlands. This information is given for the convenience of users of this part of ISO 26082 and does not constitute an endorsement by ISO of this product. 3) Suitable equipment can be obtained from SATRA Technology Centre, Kettering
36、, UK, NN16 8SD. This information is given for the convenience of users of this International Standard and does not constitute an endorsement by ISO of these products. BS EN ISO 26082-2:2012ISO 26082-2:2012(E) IULTCS/IUP 53-2:2012(E) ISO 2012 All rights reserved 3 mounted with the centre point of its
37、 longitudinal axis at a distance of (240 25) mm from the axis of rotation and its longitudinal axis tangential to this radial line; of such dimensions that no point within the cylinders is further than 350 mm from the axis of rotation. Dimension in millimetres Key 1 bleached cotton cloth or leather
38、test specimen, as required Figure 1 Schematic (not to scale) diagram of a suitable tumbling soiling machine 5.2 White felt cubes4), containing a minimum 90 % wool and of density 0,30 g/cm3to 0,40 g/cm3, with sides measuring (12,5 0,5) mm. 160 felt cubes are required. 5.3 Oven capable of maintaining
39、a temperature of (60 2) C with local exhaust ventilation and in an ignition risk-free environment. 5.4 Undyed, desized, cotton rubbing cloth, as specified in ISO 105-F09, cut into circles of diameter (96 1) mm. A minimum of six is required. 5.5 Colorimeter, complying with ISO 105-A04 and using CIE 1
40、0 observer and illuminant D65. For a sphere-type colorimeter, “spectrally included” shall be used. 5.6 Grey scale, with half step ratings for assessing the degree of staining as described in ISO 105-A03 for white leathers or ISO 105-A02 for other colours. 4) A suitable product can be obtained from N
41、aish Felts Ltd, Wilton, Salisbury SP2 0HD, UK. This information is given for the convenience of users of this part of ISO 26082 and does not constitute an endorsement by ISO of this product. BS EN ISO 26082-2:2012ISO 26082-2:2012(E) IULTCS/IUP 53-2:2012(E) 4 ISO 2012 All rights reserved5.7 Suitable
42、Maeser-type machine, incorporating the following: 5.7.1 Pair or pairs of V-shaped clamps, which are (63 3) mm apart and in the same horizontal plane, into which the test specimen can be clamped. Each clamp shall have a ”V” form with an internal angle of (31 1) and an internal tip radius of (7,5 0,5)
43、 mm. Dimension in millimetres Key X pivot point 1 stationary clamp (5.7.2) 2 moveable clamp (5.7.3) 3 test specimen Figure 2 Side view of test specimen in “V” shaped clamps 5.7.2 One stationary clamp. 5.7.3 One moveable clamp, which shall pivot about a point X which is midway (31,5 1,5) mm between t
44、he clamps such that the lower end of the clamps move together (see Figure 2). 5.7.4 A pivot point X (see Figure 2), which shall be (54,0 0,5) mm above the internal face of the clamp at the tip of the “V” and the flexing angle through which the clamp moves shall be (32 2). 5.7.5 A method of applying
45、a simple harmonic motion to the moveable clamp (5.7.3) so that it pivots toward the stationary clamp (5.7.2) and back to its original position at a rate of (90 5) cycles/min. 5.7.6 A means of counting the number of cycles of the moveable clamp (5.7.3). 5.8 Martindale abrasion testing apparatus, as d
46、escribed in ISO 12947-1, if required (see 6.4). 5.9 Silicon carbide paper, of grit size 180 and possibly higher, if required (see 6.4). BS EN ISO 26082-2:2012ISO 26082-2:2012(E) IULTCS/IUP 53-2:2012(E) ISO 2012 All rights reserved 56 Sampling and sample preparation 6.1 Cut four circular test specime
47、ns of diameter (96 1) mm from the leather under test in accordance with ISO 2418 or by ensuring that no specimen is taken from within 50 mm of the edges. If the leather has a grain pattern, select the specimens to be representative of the overall surface texture/appearance. 6.2 Cut four approximatel
48、y (50 55) mm rectangles of the leather under test following the sampling procedure in 6.1. These are going to be used as reference samples in the assessment (7.4.2). 6.3 Condition the test specimens (6.1 and 6.2) and cotton discs (5.4) in accordance with ISO 2419 and carry out the test in this envir
49、onment. 6.4 If required, finished or coated leathers that are vulnerable to loss of soiling resistance in service due to deterioration of the surface may be subjected to a physical pretreatment regime prior to testing. The following regime simulates the natural abrasion and flexing that occurs in upholstery leathers in service: 100 revolutions with silicon carbide paper of grit size 180, using an abrasion machine complying with that described in ISO 12947-1,
