1、December 2016 English price group 12No 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!%C“2596132www.din.deD
2、IN EN ISO 19076Leather Measurement of leather surface Using electronic techniques (ISO 19076:2016);English version EN ISO 19076:2016,English translation of DIN EN ISO 19076:2016-12Leder Messung der Oberflche des Leders Elektronische Verfahren (ISO 19076:2016);Englische Fassung EN ISO 19076:2016,Engl
3、ische bersetzung von DIN EN ISO 19076:2016-12Cuir Mesurage de la surface du cuir Utilisation de techniques lectroniques (ISO 19076:2016);Version anglaise EN ISO 19076:2016,Traduction anglaise de DIN EN ISO 19076:2016-12www.beuth.deDocument comprises 21 pagesDTranslation by DIN-Sprachendienst.In case
4、 of doubt, the German-language original shall be considered authoritative.12.16 DIN EN ISO 19076:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 19076:2016) has been prepared by Technical Committee IULTCS “International Union of Leather Technologists and Chem
5、ists 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 Materials Testing), Working Committee NA 062-05-51 AA Anforderungen und ph
6、ysikalische Prfverfahren fr Leder und seine Ausgangsprodukte. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2419 DIN EN ISO 2419 ISO 2588 DIN EN ISO 2588 ISO 2589 DIN EN ISO 2589 ISO 11646 DIN EN ISO 11646 ISO 17186 DIN EN ISO 17186 N
7、ational Annex NA (informative) Bibliography DIN EN ISO 2419, Leather Physical and mechanical tests Sample preparation and conditioning DIN EN ISO 2588, Leather Sampling Number of items for a gross sample DIN EN ISO 2589, Leather Physical and mechanical tests Determination of thickness DIN EN ISO 116
8、46, Leather Measurement of area DIN EN ISO 17186, Leather Physical and mechanical tests Determination of surface coating thickness EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 19076 August 2016 ICS 59.140.30 English Version Leather - Measurement of leather surface - Using electronic tech
9、niques (ISO 19076:2016) Cuir - Mesurage de la surface du cuir - Utilisation de techniques lectroniques (ISO 19076:2016) Leder - Messung der Oberflche des Leders - Elektronische Verfahren (ISO 19076:2016) This European Standard was approved by CEN on 30 July 2016. CEN members are bound to comply with
10、 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 to the CEN-CENELEC Manage
11、ment 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 Management Centre has the same stat
12、us 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, Lithuania, Luxembourg, Malta
13、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN A
14、ll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 19076:2016 EEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Principle 65 Apparatus and materials 65.1 Measuring machine . 65.1.1 Machi
15、ne design types 65.1.2 Type A, B, and C measuring machines . 75.1.3 Type D measuring machine 75.2 Reference calibrated templates for machine verification 86 Sampling and conditioning 87 General measurement criteria. 87.1 General requirement 87.2 Leather orientation during measurement 97.2.1 General
16、97.2.2 Measuring whole leathers . 97.2.3 Measuring half leathers . 97.2.4 Measuring leather cut pieces 97.3 Measurement operations . 97.3.1 Roller machines 97.3.2 Conveyor machines 97.3.3 Flatbed scanner machines and bi-dimensional static measuring devices 108 Measurement procedure . 109 Calculation
17、 and expression of results 1110 Test report 11Annex A (normative) Calibrated templates for the verification of electronic measuring machines 12Annex B (normative) Procedure for the verification of a measuring machine by calibrated templates . 14Annex C (normative) Laboratory record of calibrated tem
18、plates .16Annex D (informative) Repeatability and reproducibility 17Bibliography .19Contents PageDIN EN ISO 19076:2016-12 EN ISO 19076:2016 (E)2Foreword .4European foreword This document (EN ISO 19076:2016) has been prepared by Technical Committee IULTCS “International Union of Leather Technologists
19、 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 endorsement, at the latest by February 2017, and
20、conflicting national standards shall be withdrawn at the latest by February 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 identifying any or all such patent rights. Acco
21、rding 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 Yugoslav Republic of Macedonia, France, Germany
22、, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 19076:2016 has been approved by CEN as EN ISO 19076:2016
23、 without any modification. DIN EN ISO 19076:2016-12 EN ISO 19076:2016 (E) 3 ForewordISO (the 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 t
24、echnical 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 take part in the work. ISO collaborates clos
25、ely 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 particular the different approval criteria n
26、eeded 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 elements of this document may be the subject of paten
27、t 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 (see www.iso.org/patents).Any trade name used i
28、n 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 adherence to the WTO principles in the Technical Barrie
29、rs to Trade (TBT) see the following URL: Foreword - Supplementary informationISO 19076/IUP 58 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 Standardizat
30、ion (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is held by UNI, in accordance with the agreement on technical co-operation between ISO and CEN (Vienna Agreement).IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further t
31、he 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 for the preparation of test methods for leather.DIN EN IS
32、O 19076:2016-12 EN ISO 19076:2016 (E)4 IntroductionLeather surface measuring equipment used within the European Union (EU) for legal metrology applications are also subject to the EU Directive, 2004/22/EC, on measuring instruments.DIN EN ISO 19076:2016-12 EN ISO 19076:2016 (E) 5 1 ScopeThis Internat
33、ional Standard provides a method for the measurement of the surface of leather or leather parts by the use of electronic measuring machines.It applies to the measurement of leather (or leather parts) fulfilling the following requirements: flexible leather, finished or unfinished, dry or wet leather;
34、 flexibility: such to allow full distension on the measuring line/surface.NOTE For tanned and pressed wet leather, the parties involved agree on the conditioning type. In case of dispute, leather is to be conditioned according to the reference standard conditions in ISO 2419.2 Normative referencesTh
35、e following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 2419,
36、Leather Physical and mechanical tests Sample preparation and conditioningISO 2588, Leather Sampling Number of items for a gross sampleEN 15987, Leather Terminology Key definitions for the leather trade3 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 159
37、87 and the following apply.3.1relative feedmovement of relative translation between leather and the system detecting its presence4 PrincipleThe leather surface is measured by means of a measuring device provided with a linear or rectangular array of uniformly-spaced electronic sensors, capable to de
38、tect leather presence and to integrate the relevant information (as a sum of elementary rectangular areas). Precision data are available in Annex D.5 Apparatus and materials5.1 Measuring machine5.1.1 Machine design typesThe measuring machines are built according to 4 basic types:DIN EN ISO 19076:201
39、6-12 EN ISO 19076:2016 (E)6 Type A roller machines, where leather passes in front of the sensor array under guidance of a series of free-rotating measuring rollers easing leather spread out by a light pressure on the sensor array, also incorporating the feeding systems.Type B conveyor machines, wher
40、e leather is transported under the sensor array by cables or belts mounted before and after the sensors themselves and substantially coplanar with them.NOTE 1 This machine is more suitable for rigid leathers as the leather is transported on cables.Type C flatbed scanning machines, with a horizontal
41、plane surface (flatbed) where leather is laid flat, and a “portal-shaped” frame containing the sensors; the frame is manually or mechanically moved, over and parallel to the flatbed.NOTE 2 This machine type is particularly used to measure the surface of small leathers or pieces of leather.Type D bi-
42、dimensional static measuring devices, based on the capture of a 2-dimension leather image along the normal direction to the leather plane.5.1.2 Type A, B, and C measuring machinesThe measuring machine consists at least of: a base frame; a relative feed system between leather and measuring system; a
43、set of sensors (sensor array) uniformly spaced along a direction normal to the feeding movement, to detect leather presence; a processing system to integrate signals coming from the sensors array and from the feeding movement sensing, as shown in Clause 4; a numerical indicator (display) of the leat
44、her surface measure, in metric units, with 0,1 dm2resolution with respect to the measured value. As an option, the machine may be equipped with a stamping or printing system to record the surface measured value onto leather or onto a label.The distance i between two adjacent sensors for the detectio
45、n of leather presence shall not be greater than 27 mm across the feeding direction.Let p be the step of the leather presence detection along the feeding direction: the values of i and p shall be such that their product i.p is not greater than 1/400 of the minimum measureable surface.The feeding spee
46、d shall allow leather to spread out adequately during measurement.NOTE 1 The machine is equipped with a feeding speed adjustment device to aid the fulfilment of this condition.NOTE 2 In Type A and Type B machines the feeding speed can affect the spread out of the leather and consequently the measuri
47、ng uncertainty.If the machine allows temporary feeding stop (e.g. by manual holding) during measurement, this shall not significantly alter the measuring value.Any feeding inversion, even partial and/or temporary, shall automatically cancel the measure, unless the measuring system allows for the inv
48、ersion in the area calculation. Such information shall be checked in the instruction manual provided by the machine manufacturer.5.1.3 Type D measuring machineThe measuring machine consists at least of: a base frame; a plane surface to spread and support leather;DIN EN ISO 19076:2016-12 EN ISO 19076:2016 (E) 7 a bi-dimensional image captur
