ISO 2812-5:2018 塗料とワニス—液体に対する耐性の決定—パート5：温度勾配オーブン法 | 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 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.

This second edition cancels and replaces the first edition (ISO 2812-5:2007), which has been technically revised. The main changes compared to the previous edition are as follows:

• a) Clause 3 and Clause 5 have been added;
• b) in 6.1, the description of the gradient oven has been amended;
• c) in 10.3, the distance of the individual heating segments for a temperature increase of 1 °C has been clarified to 1 cm;
• d) in Clause 11, reference to ISO 13076 has been made for the lighting and procedure for visual assessment;
• e) in Annex A, the CAS numbers have been added to the reagents listed.

A list of all parts in the ISO 2812 series can be found on the ISO website.

1 Scope

This document specifies a method, using a temperature-gradient oven, for determining the resistance of an individual-layer or multi-layer system of coating materials to the effects of liquids or paste-like products.

This method enables the testers to determine the effects of the test substance on the coating and, if necessary, to assess the damage to the substrate.

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 4618 apply.

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

Bibliography