ISO 9220:2022 金属コーティング—コーティングの厚さの測定—走査型電子顕微鏡法 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings, in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 262, Metallic and other inorganic coatings, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 9220:1988), which has been technically revised.

The main changes are as follows:

• addition of two further calibration methods in 5.2, 8.2, and 8.3;
• deletion of technically outdated content concerning instability of SEMs and analogue photos or concerning the operation of SEMs [removal of old Subclauses 6.11, 6.12, 6.13, 8.4, 9.2.1, 9.2.2, 9.3, A.2.3, A.3.2, A.3.3, A.3.4, and A.3.7; revision of item e) in Clause 12];
• discussion of influences of imaging parameters on measurement uncertainty (new 6.11);
• revision of Clause 10 and addition of Annex B with precision data from round robin tests;
• revision of Annex A to (re-) align it with ISO 1463:2021;
• adding a bibliography with informative references.

1 Scope

This document specifies a destructive method for the measurement of the local thickness of metallic and other inorganic coatings by examination of cross-sections with a scanning electron microscope (SEM). The method is applicable for thicknesses up to several millimetres, but for such thick coatings it is usually more practical to use a light microscope (see ISO 1463). The lower thickness limit depends on the achieved measurement uncertainty (see Clause 10).

2 Normative references

There are no normative references in this document.

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