ISO 19409:2022 履物 - サイジング - 最後の寸法の測定 | ページ 2

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 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 electrotechnical standardization.

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This document was prepared by Technical Committee ISO/TC 137, Footwear sizing designations and marking systems.

Introduction

A shoe last is the form on which a shoe is constructed. The size and shape of the last is vital and contributes to the size and shape of the finished product. The shoe last determines the toe shape and heel height as well as the curvature of the shoe. Good fit is a key factor in a customer’s choice of footwear. The footwear design and manufacturing processes also contributes to a well-constructed shoe. A standard method of measuring a last will guide the industry on correct shoe sizing based on the last dimensions and will reduce discrepancies and disputes.

1 Scope

This document specifies methods to measure the basic last dimensions. Last dimensions can be measured physically using a real last or virtually on a digital 3D model using suitable software to make equivalent measurements.

These test methods are applicable to all types of lasts.

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

For the purposes of this document, the terms and definitions given in ISO/TS 19408:2015 and the following apply.

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