1、May 2017 English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 59.140.30!%eBy“2663186www.din.deDIN
2、EN ISO 2418Leather Chemical, physical and mechanical and fastness test Sampling location (ISO 2418:2017);English version EN ISO 2418:2017,English translation of DIN EN ISO 2418:2017-05Leder Chemische, physikalische und mechanische Prfungen und Echtheitsprfungen Probenahmestelle (ISO 2418:2017);Engli
3、sche Fassung EN ISO 2418:2017,Englische bersetzung von DIN EN ISO 2418:2017-05Cuir Essais chimiques, physiques, mcaniques et de solidit Emplacement de lchantillonnage (ISO 2418:2017);Version anglaise EN ISO 2418:2017,Traduction anglaise de DIN EN ISO 2418:2017-05SupersedesDIN EN ISO 2418:200310www.b
4、euth.deDocument comprises 15 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN ISO 2418:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 2418:2017) has been prepared by Technic
5、al Committee IULTCS “International Union of Leather Technologists and Chemists Societies” in collaboration with Technical Committee CEN/TC 289 “Leather” (Secretariat: UNI, Italy). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee
6、Materials Testing), Working Committee NA 062-05-51 AA “Requirements and physical test methods of leather and its starting products”. Amendments This standard differs from DIN EN ISO 2418:2003-10 as follows: a) Figure 1 “Segmentation of a whole hide” into subsegments has been included; b) in 4.1.4.4,
7、 the description of sampling in an arbitration analysis has been included; c) Clause 4 and the location of laboratory samples have been clarified; d) Figure 1 to Figure 5 have been re-drawn and re-labelled; e) 6.2 d) has also been included; f) the standard has been editorially revised. Previous edit
8、ions DIN 53303: 1944-02 DIN 53302-1: 1968-05, 1990-12 DIN 53302-2: 1968-05 DIN EN ISO 2418: 2003-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2418 February 2017 ICS 59.140.30 English Version Leather - Chemical, physical and mechanical and fastness test - Sampling location (ISO 2418:20
9、17) Cuir - Essais chimiques, physiques, mcaniques et de solidit - Emplacement de lchantillonnage(ISO 2418:2017) Leder - Chemische, physikalische und mechanische Prfungen und Echtheitsprfungen - Probenahmestelle (ISO 2418:2017) This European Standard was approved by CEN on 19 January 2017. CEN member
10、s 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 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application
11、 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Managemen
12、t 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, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
13、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Ma
14、rnix 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 EEuropean foreword .31 Scope . 52 Normative references 53 Terms and definitions . 54 Location of laboratory samples 54.1 General . 54.1.1 S
15、egmentation of leather 54.1.2 Selection of samples 64.1.3 Sampling for physical and colour fastness testing 64.1.4 Sampling for chemical testing 74.1.5 Sampling where areas of tension exist . 74.2 Whole hides, skins and sides 84.3 Bends (butts) 94.4 Shoulders 104.5 Bellies .115 Storage of laboratory
16、 samples 116 Identification of laboratory sample .126.1 Marking of the direction of the backbone .126.2 Marking 12Bibliography .13Contents PageDIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 2Foreword . 4European foreword This document (EN ISO 2418:2017) has been prepared by Technical Committee IULTCS
17、“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 European Standard shall be given the status of a national standard, either by publication of an identical text or by endo
18、rsement, 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 elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identi
19、fying 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 European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugosl
20、av 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 the United Kingdom. Endorsement notice The text of ISO 2418:20
21、17 has been approved by CEN as EN ISO 2418:2017 without any modification. DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International St
22、andards 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 liaison with ISO, also
23、 take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical 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
24、 particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in 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 eleme
25、nts of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. 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
26、 (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adhe
27、rence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.ISO 2418 was prepared by the Physical Test Commission of the International Union of Leather Technologists and Chemists Societies (IUP Commission,
28、IULTCS), in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat 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 Commission
29、s were consulted in the preparation of this standard. The locations of the samples are identical to those given in IUP 2 published in J. 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 met
30、hod in 1959 and IUC 2 in 1965. Updated versions were published in J. Soc. Leather Tech. Chem. 82, p. 194, (1998) and further revisions were 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
31、 includes tolerances for measurements but the locations of the samples are identical.IULTCS, originally 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
32、 establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body 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 wit
33、h the following changes: Clause 4 and the location of laboratory samples have been clarified; Figure 1 to Figure 5 have been re-drawn and re-labelled; 6.2 d) has also been added.DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 4 1 ScopeThis document specifies the location of a laboratory sample within a
34、 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.2 Normative references
35、There 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 following addresses: IEC E
36、lectropedia: 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 is considered (see Fig
37、ure 1): bend (or butt), shoulder and belly.DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 5 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 of samples4.1.2.1 Areas selected for lab
38、oratory 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 samples taken from different segments can va
39、ry 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 testing, take leather samples from the non-
40、shaded areas specified in Figure 2 to Figure 5 as appropriate.DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 6 4.1.3.2 In arbitration analysis, only leather samples taken from the appropriate area of whole hides, skin or sides (see 4.2) shall be used as the test sample.4.1.4 Sampling for chemical test
41、ing4.1.4.1 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 corresponding area on the other side of the backbone. If this is impossible, take add
42、itional 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 arbitration analysis, only leather samples taken from the appropriate shaded area of whol
43、e 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 process that creates tension in the leather at the edges, then the distance of the s
44、ampling areas from the edges of the leather shall be increased from 50 mm to at least 100 mm where possible.DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 7 4.2 Whole hides, skins and sidesTake the non-shaded square piece GJKH and/or the shaded square piece HLMN shown in Figure 2. In small skins, the
45、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 procedure.NOTE Sampling areas can be taken either on the right and/or left side of the hide.KeyB root of the tailC top of th
46、e 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 Lines GH, JK, HN and LM are parallel to BC.Figure 2 Sampling location for whole hides, skins and sidesDIN EN ISO 2418:201
47、7-05 EN ISO 2418:2017 (E) 8 4.3 Bends (butts)Take the non-shaded square piece GJKH and/or the shaded square piece HLMN shown in Figure 3.KeyB root 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 Representation of a bend showing sampling location for bends (or butts)DIN EN ISO 2418:2017-05 EN ISO 2418:2017 (E) 9
