ISO 4065:2018 熱可塑性プラスチックパイプ—ユニバーサル肉厚テーブル | 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 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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This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids.

This third edition cancels and replaces the second edition (ISO 4065:1996), which has been technically revised.

The significant changes are:

• S-values and design stresses for 6,0 bar are deleted;
• Wall thickness values for pipes with diameters up to 3000 mm are included;
• The upper limit for tabled wall thicknesses increased to 150 mm;
• Additional pipe series S 10,5, S 13,3 and S 16,7 are left for use in non-pressure purposes only;
• Definitions are updated to follow modern plastics piping terminology.
• This corrected version of ISO 4065:2018 incorporates the following corrections:
• The missing decimal separators in Tables 1 and 2 have been reinserted.

1 Scope

This document specifies the relationship between the nominal wall thickness e_n and the nominal outside diameter d_n of thermoplastics pipes.

It is applicable to solid-wall thermoplastics pipes of constant circular cross-section along the whole length of the pipe, whatever their method of manufacture, their composition or their intended application.

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 following terms and definitions apply.

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

Bibliography