ISO 16365-1:2025 プラスチック — 成形および押出用の熱可塑性ポリウレタン — Part 1:指定システムと仕様の根拠 | 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.

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 document 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 ).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents . ISO shall not be held responsible for identifying any or all such patent rights.

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This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.

This second edition cancels and replaces the first edition (ISO 16365-1:2014), which has been technically revised.

The main changes are as follows:

• the range of hardness Shore A in Table 4 has been modified.

A list of all parts in the ISO 16365 series can be found on the ISO website.

Introduction

This document is based on the ISO 1043 series and ISO 11469.

The types of thermoplastic polyurethane are differentiated from each other by a classification system based on appropriate levels of the designatory properties:

• a) hardness;
• b) tensile modulus of elasticity (optional);

and on information about the alternating hard and soft segments in the main chain, the intended application and/or method of processing, important properties, additives, colour, fillers and reinforcing materials.

In order to specify a thermoplastic elastomer for a particular application or reproducible processing, additional requirements are given in data block 5 (see 4.1 and 4.6).

1 Scope

This document establishes a system of designation for thermoplastic polyurethane elastomers.

The designation system can be used as the basis for specifications.

The designation system is applicable to all thermoplastic polyurethane elastomers. It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colourants, fillers or other additives, etc.

This document does not intend to imply that materials having the same designation give necessarily the same performance. This document does not provide engineering data, performance data, or data on processing conditions which might be required to specify a material for a particular application and/or method of processing.

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