3. Layer thickness measurements
The term layer thickness is reserved for a layer created from the surface of the product:
organic coating, metallic coating obtained by electrolytic, chemical or physical processes;
layer obtained by diffusion of a new element on the surface of the product: carburizing with carbon, nitrogen, etc.
3.1 Meaning of measurement
The thickness of coatings is an essential characteristic when the aim is to protect against corrosion; it is the subject of negotiation between manufacturer and user, and very often the thickness of the coating determines the cost of the operation. Standard NF A 91-010 provides precise definitions of minimum...
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Layer thickness measurements
Bibliography
Standardization
French Standards Association (AFNOR)
- Metal coatings and surface treatments – Terminology – Classification – Symbolization. - NF A91-010 - 12-84
- Metallic coatings – Hot spray coating (spray metallization) – Characteristic properties and test method. - NF A91-202 - 10-79
- Non-destructive testing – Qualification and certification of NDT personnel – General principles. Classification index : A09-010. -...
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Organizations
Association de documentation pour l'industrie nationale (ADIN).
Association française de normalisation (AFNOR).
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Bureau national de métrologie (BNM).
Confédération française pour les essais non destructifs (COFREND).
Institut national de métrologie...
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