ISO 17072-2:2022 皮革 — 金属含有量の化学的測定 — Part 2:総金属含有量 | ページ 2

Foreword

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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 ).

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

This document was prepared by the Chemical Test Commission of the International Union of Leather Technologists and Chemists Societies (IUC 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).

This third edition cancels and replaces the second edition (ISO 17072-2:2019), which has been technically revised. The main changes are as follows:

• Clause 1, Clause 6 and 8.1 have been editorially and technically modified;
• a new Annex B has been added describing the digestion procedure for the determination of aluminium and titanium.

A list of all parts in the ISO 17072 series can be found on the ISO website.

1 ​Scope

This document specifies a method for the determination of the total metal content in leather using digestion of the leather and subsequent determination with inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), atomic absorption spectrometry (AAS) or spectrometry of atomic fluorescence (SFA).

This method determines the total metal content in leather. It is not compound-specific or specific to the oxidation state of the metals.

The method is applicable for determining the following metals:

This method is also suitable for determining Boron (B) in leather.

In the case of chromium-tanned leathers, it is often more relevant to use ISO 5398-1, ISO 5398-2, ISO 5398-3 or ISO 5398-4.

Interlaboratory test results and the quantification limits possible with ICP-OES are given in Tables A.1 and A.2.

For the determination of Al and Ti in leather, a digestion procedure is given in Annex B.

2 ​Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.

3 ​Terms and definitions

No terms and definitions are listed in this document.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Bibliography