ASTM E384

ASTM E384 is a standard test method that measures the hardness of small or thin materials, such as coatings or coatings on substrates, using a microhardness tester. It involves pressing a very small, diamond-shaped indenter into the material’s surface under a specified load. The size of the indentation indicates the material’s hardness. This test helps manufacturers evaluate material qualities, identify variations, and ensure quality control, especially when working with delicate or thin samples where standard hardness tests would be too invasive or not precise enough.