This standard describes a method for the measurement of the local thickness of metallic coatings, oxide layers, and porcelain or vitreous enamel coatings, by the microscopical examination of cross-sections using an optical microscope.
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2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 12334 Metallic and other inorganic coatings - Definitions and conventions concerning the measurement of thickness (idt ISO 2064)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 12334, as well as the following apply.
local thickness
the mean of the thickness measurements, of which a specified number is made within a reference area
