NF A91-139-1-2006 《Thickness measurement of coatings and characterization of surfaces with surface waves - Part 1 : guide to determination of elastic constants, density and thickness of films by laser induced surface acoustic waves》 Related products

The NF A91-139-1-2006 standard provides guidelines for the determination of coating resilience constants, densities, and film thickness using laser-induced surface acoustic wave methods. The standard applies to coating thickness measurement and surface wave surface characterization, and details relevant terminology and determination procedures to help determine the physical properties of thin films.