prEN ISO 2418

Leather - Chemical, physical, mechanical and fastness tests - Position and preparation of specimens for testing (ISO/DIS 2418:2022)

ISO 2418:2017 specifies the location of a laboratory 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.

Leder – Chemische, physikalische und mechanische Prüfungen und Echtheitsprüfungen – Position und Vorbereitung der Proben für die Prüfung (ISO/DIS 2418:2022)

Cuir - Essais chimiques, physiques, mécaniques et essais de solidité - Emplacement et préparation des spécimens pour les essais (ISO/DIS 2418:2022)

ISO 2418:2017 spécifie l'emplacement d'un échantillon pour laboratoire à prélever sur une pièce de cuir et la méthode d'étiquetage et de marquage des échantillons en vue de leur identification ultérieure.
Elle est applicable à tous les types de cuirs de mammifères, quel que soit le mode de tannage utilisé.
Elle n'est pas applicable aux cuirs provenant d'oiseaux, de poissons, de reptiles ou d'animaux à fourrure.

Usnje - Kemijski, fizikalni, mehanski in obstojnostni preskusi - Namestitev in priprava vzorcev za preskušanje (ISO/DIS 2418:2022)

General Information

• Status: Not Published
• ICS: 59.140.30 - Leather and furs
• Technical Committee: CEN/TC 289 - Leather
• Drafting Committee: CEN/TC 289/WG 2 - Physical test methods
• Ref Project: oSIST prEN ISO 2418:2022 - Leather - Chemical, physical, mechanical and fastness tests - Position and preparation of specimens for testing (ISO/DIS 2418:2022)

RELATIONS

• Revised: EN ISO 2418:2017 - Leather - Chemical, physical and mechanical and fastness test - Sampling location (ISO 2418:2017)
• Effective Date: 15-Dec-2021

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 2418:2022
01-april-2022
Usnje - Kemijski, fizikalni, mehanski in obstojnostni preskusi - Namestitev in
priprava vzorcev za preskušanje (ISO/DIS 2418:2022)

Leather - Chemical, physical, mechanical and fastness tests - Position and preparation

of specimens for testing (ISO/DIS 2418:2022)

Leder – Chemische, physikalische und mechanische Prüfungen und Echtheitsprüfungen

– Position und Vorbereitung der Proben für die Prüfung (ISO/DIS 2418:2022)

Cuir - Essais chimiques, physiques, mécaniques et essais de solidité - Emplacement et

préparation des spécimens pour les essais (ISO/DIS 2418:2022)
Ta slovenski standard je istoveten z: prEN ISO 2418
ICS:
59.140.30 Usnje in krzno Leather and furs
oSIST prEN ISO 2418:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 2418:2022
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oSIST prEN ISO 2418:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 2418
IULTCS
IUP 2
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:
2022-02-22 2022-05-17
Leather – Chemical, physical, mechanical and fastness tests
– Position and preparation of specimens for testing
ICS: 59.140.30
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference numbers
NATIONAL REGULATIONS.
ISO/DIS 2418:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUP 2:2022(E)
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
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oSIST prEN ISO 2418:2022
ISO/DIS 2418:2022(E)
IULTCS/IUP 2:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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© ISO 2022 – All rights reserved
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oSIST prEN ISO 2418:2022
ISO/DIS 2418:2022(E)
IULTCS/IUP 2:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Position of laboratory test specimens .......................................................................................................................................... 2

4.1 General ........................................................................................................................................................................................................... 2

4.1.1 Segmentation of leather ............................................................................................................................................... 2

4.1.2 Selection of test specimens ....................................................................................................................................... 3

4.1.3 Position of specimens for physical and mechanical testing ........................................................ 3

4.1.4 Position of specimens for chemical testing ................................................................................................ 3

4.1.5 Position of specimens for colour fastness testing ................................................................................ 3

4.1.6 Location of test specimens where areas of tension exist ............................................................... 3

4.1.7 Location of test specimens in case of arbitration ................................................................................. 3

4.2 Whole hides, skins and sides ...................................................................................................................................................... 3

4.3 Bends (butts) ............................................................................................................................................................................................ 5

4.4 Shoulders ..................................................................................................................................................................................................... 6

4.5 Bellies .............................................................................................................................................................................................................. 7

5 Storage of laboratory leather pieces and specimens .................................................................................................... 8

6 Identification of official test specimens ...................................................................................................................................... 9

6.1 Marking of the direction of the backbone ...................................................................................................................... 9

6.2 Identification marking ..................................................................................................................................................................... 9

7 Design of press knives for cutting test pieces....................................................................................................................... 9

8 Preparation of test pieces ..........................................................................................................................................................................9

Bibliography .............................................................................................................................................................................................................................10

iii
© ISO 2022 – All rights reserved
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oSIST prEN ISO 2418:2022
ISO/DIS 2418:2022(E)
IULTCS/IUP 2:2022(E)
Foreword

ISO (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 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

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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 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 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. 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

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,

as well as information about ISO's adherence 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, 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 Commissions were consulted in the preparation of this standard. The

locations of the test specimens 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 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 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 includes tolerances for measurements but the locations of the test specimens 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 establishing international methods for the sampling, preparation of specimens and

testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of

test methods for leather.

This fourth edition cancels and replaces the third edition (ISO 2418:2017), which has been technically

revised with the following changes:
— a new title to more correctly explain the purpose of this document;

— definitions 3.1 to 3.4 have been added and the text throughout the document has been revised to use

the words “specimen” and “test piece” where appropriate instead of “sample” and “sampling”;

— 4.1 has been revised and re-organised. In addition, in 4.1.1 when the client identifies the part of the

hide or skin supplied and the location of the backbone then the laboratory is not responsib

...