1、BS EN ISO 2418:2017Leather Chemical, physicaland mechanical and fastnesstest Sampling location (ISO2418:2017)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 2418:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO
2、2418:2017.It supersedes BS EN ISO 2418:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication
3、does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 86625 8 ICS 59.140.30 Compliance with a British Standard cannot confer immunity from
4、 legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2418 February 2017 ICS 59.1
5、40.30 English Version Leather - Chemical, physical and mechanical and fastness test - Sampling location (ISO 2418:2017) Cuir - Essais chimiques, physiques, mcaniques et de solidit - Emplacement de lchantillonnage (ISO 2418:2017) Leder - Chemische, physikalische und mechanische Prfungen und Echtheits
6、prfungen - Probenahmestelle (ISO 2418:2017) This European Standard was approved by CEN on 19 January 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterati
7、on. 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, German). A version in any other language made by
8、 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
9、Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR S
10、TANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2418:2017 EBS EN ISO 2418:2017EN
11、 ISO 2418:2017 (E) 3 European foreword This document (EN ISO 2418:2017) has been prepared by Technical Committee IULTCS “International Union of Leather Technologists and Chemists Societies“ in collaboration with Technical Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI. This E
12、uropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2017, and conflicting national standards shall be withdrawn at the latest by August 2017. Attention is drawn to the possibility that some of the el
13、ements 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 implement this
14、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, Romania, Serbia, S
15、lovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2418:2017 has been approved by CEN as EN ISO 2418:2017 without any modification. BS EN ISO 2418:2017ISO 2418:2017(E)IULTCS/IUP 2:2017(E)Foreword iv1 Scope . 12 Normative references 13 Ter
16、ms and definitions . 14 Location of laboratory samples 14.1 General . 14.1.1 Segmentation of leather 14.1.2 Selection of samples 24.1.3 Sampling for physical and colour fastness testing 24.1.4 Sampling for chemical testing 34.1.5 Sampling where areas of tension exist . 34.2 Whole hides, skins and si
17、des 44.3 Bends (butts) 54.4 Shoulders . 64.5 Bellies 75 Storage of laboratory samples . 76 Identification of laboratory sample 86.1 Marking of the direction of the backbone 86.2 Marking . 8Bibliography 9 ISO 2017 All rights reserved iiiContents PageBS EN ISO 2418:2017ISO 2418:2017(E)ForewordISO (the
18、 International Organization for Standardization) is a worldwide federation of national standards bodies (ISO 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 committe
19、e has been established has the right to be represented on that committee. International organizations, governmental 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 electrotechni
20、cal standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in
21、 accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).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
22、. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constit
23、ute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso
24、/ foreword .html.ISO 2418 was prepared by the Physical Test Commission of the International Union of Leather Technologists and Chemists Societies (IUP Commission, IULTCS), in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat
25、of which is held by UNI, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).The Chemical and Fastness Test Commissions were consulted in the preparation of this standard. The locations of the samples are identical to those given in IUP 2 published in J.
26、Soc. Leather Trades Chemists 42, pp. 382-385, (1958) and IUC 2 published in J. Soc. Leather Trades Chemists 49, pp. 6-8, (1965). IUP 2 was declared an official method in 1959 and IUC 2 in 1965. Updated versions were published in J. Soc. Leather Tech. Chem. 82, p. 194, (1998) and further revisions we
27、re published in J. Soc. Leather Tech. Chem. 84, p. 303, (2000) and reconfirmed as official methods in March 2001. The ISO Standard differs slightly in the text and includes tolerances for measurements but the locations of the samples are identical.IULTCS, originally formed in 1897, is a world-wide o
28、rganization 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 the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body
29、 for the preparation of test methods for leather.This third edition cancels and replaces the second edition (ISO 2418:2002), which has been technically revised with the following changes: Clause 4 and the location of laboratory samples have been clarified; Figure 1 to Figure 5 have been re-drawn and
30、 re-labelled; 6.2 d) has also been added.IULTCS/IUP 2:2017(E)iv ISO 2017 All rights reservedBS EN ISO 2418:2017INTERNATIONAL STANDARDISO 2418:2017(E)IULTCS/IUP 2:2017(E)Leather Chemical, physical and mechanical and fastness tests Sampling location1 ScopeThis document specifies the location of a labo
31、ratory sample within a piece of leather and the method of labelling and marking the laboratory samples for future identification.It is applicable to all types of leather derived from mammals irrespective of the tanning used.It is not applicable to leathers derived from birds, fish, reptiles or furs.
32、2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the terms and definitions given in the International Glossary of Leather Terms1apply.ISO and IEC maintain terminological databases for use in standardization at the foll
33、owing addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 Location of laboratory samples4.1 General4.1.1 Segmentation of leatherFor the purposes of this document, the following segmentation of leather
34、is considered (see Figure 1): bend (or butt), shoulder and belly. ISO 2017 All rights reserved 1BS EN ISO 2418:2017ISO 2418:2017(E)Key1 shoulder2 bend3 bellyB root of the tail (if visible)C top of the neckBC backboneR shoulder point where CR = BC/3Figure 1 Segmentation of a whole hide4.1.2 Selection
35、 of samples4.1.2.1 Areas selected for laboratory samples shall be free from all obvious defects such as scratches and flay cuts.4.1.2.2 The sampling procedures described are designed to allow concurrent physical, colour fastness and chemical testing.4.1.2.3 The results of analyses carried out on sam
36、ples taken from different segments can vary significantly. For this reason, added to the impossibility to uniquely define segments size, sampling from whole hides and sides is to be preferred (see 4.2).4.1.3 Sampling for physical and colour fastness testing4.1.3.1 For physical and colour fastness te
37、sting, take leather samples from the non-shaded areas specified in Figure 2 to Figure 5 as appropriate.IULTCS/IUP 2:2017(E)2 ISO 2017 All rights reservedBS EN ISO 2418:2017ISO 2418:2017(E)4.1.3.2 In arbitration analysis, only leather samples taken from the appropriate area of whole hides, skin or si
38、des (see 4.2) shall be used as the test sample.4.1.4 Sampling for chemical testing4.1.4.1 For chemical testing, take leather samples from the shaded area specified in Figure 2 to Figure 5 as appropriate.4.1.4.2 If the minimum mass required for chemical testing is not attained, sample from the corres
39、ponding area on the other side of the backbone. If this is impossible, take additional material from the area immediately adjacent to the sampling position.4.1.4.3 Uncontaminated trimmings from physical test pieces may be used for chemical testing except in arbitration analysis.4.1.4.4 In arbitratio
40、n analysis, only leather samples taken from the appropriate shaded area of whole hides, skin or sides (see 4.2) shall be used as the chemical test sample.4.1.5 Sampling where areas of tension existIf a hide is cut into half hides or segments and dried afterwards in a toggling drier or a drying proce
41、ss that creates tension in the leather at the edges, then the distance of the sampling areas from the edges of the leather shall be increased from 50 mm to at least 100 mm where possible.IULTCS/IUP 2:2017(E) ISO 2017 All rights reserved 3BS EN ISO 2418:2017ISO 2418:2017(E)4.2 Whole hides, skins and
42、sidesTake the non-shaded square piece GJKH and/or the shaded square piece HLMN shown in Figure 2. In small skins, the distances EF and JK can be shorter than the length required for a single sample. When sampling small skins, modify the method of sampling using the minimum deviation from this proced
43、ure.NOTE Sampling areas can be taken either on the right and/or left side of the hide.KeyB root of the tailC top of the neckBC backboneD at the edge of the hideAD line perpendicular to BCAB = BC/3, such that AC = 2ABAE = (50 5) mm (see also 4.1.5)AF = FDJK = EFGE = EHHL = NM = HN = ML = HK/2NOTE Lin
44、es GH, JK, HN and LM are parallel to BC.Figure 2 Sampling location for whole hides, skins and sidesIULTCS/IUP 2:2017(E)4 ISO 2017 All rights reservedBS EN ISO 2418:2017ISO 2418:2017(E)4.3 Bends (butts)Take the non-shaded square piece GJKH and/or the shaded square piece HLMN shown in Figure 3.KeyB ro
45、ot of the tailR shoulder point (see Figure 1)BR lies along the backboneD at the edge of the bend (butt)AD line perpendicular to BRAB = BR/2, such that AB = ARAE = (50 5) mm (see also 4.1.5)AF = FDJK = EFGE = EHHL = NM = HN = ML = HK/2NOTE Lines GH, JK, HN and LM are parallel to BR.Figure 3 Represent
46、ation of a bend showing sampling location for bends (or butts)IULTCS/IUP 2:2017(E) ISO 2017 All rights reserved 5BS EN ISO 2418:2017ISO 2418:2017(E)4.4 ShouldersTake the non-shaded rectangular piece GHJK and/or the shaded square piece HLMN shown in Figure 4.KeyC top of the neckR shoulder point (see
47、Figure 1)CR lies along the backboneS at the edge of the shoulderKP = (20 2) mm (see also 4.1.5)HQ = (50 5) mm (see also 4.1.5)RP = PSGH = JK = HL = LM = MN = GK/2NOTE Lines RS, HJ, GK and LM are perpendicular to CR. Lines GL, KJ and NM are parallel to CR.Figure 4 Representation of a shoulder showing
48、 sampling location for shouldersIULTCS/IUP 2:2017(E)6 ISO 2017 All rights reservedBS EN ISO 2418:2017ISO 2418:2017(E)4.5 BelliesTake the non-shaded rectangular piece GHJK and/or the shaded square pieces HLMN and GLMN shown in Figure 5.KeyT neck end of the bellyU tail end of the bellyD at the edge of
49、 the hideAD line perpendicular to TUTA = AUGE = EH = EF = GK = HJLH = NH = GN = GL = GH/4GH = (150 15) mmAE = (20 2) mm (see also 4.1.5)Figure 5 Representation of a belly showing sampling location for bellies5 Storage of laboratory samplesStore laboratory samples in such a way as to avoid contamination and the effects of localized heating.IULTCS/IUP 2:2017(E) ISO 2017 All rights reserved 7BS EN ISO 2418:2017ISO 2418:2017(E)6 Identification of laboratory sample6.1 Marking of the direction of the b
