Center Certification & Testing International
Project Introduction
The scratch test is one of the commonly used standard methods for testing the bonding strength between the surface film and the base material. Use a material with a hardness greater than the surface film to make a sharp tip to scratch on the surface of the sample or workpiece. Add a load to the scratch head until the film and the substrate are out of contact. At this time, the load is the critical load, and the surface film and the surface film can be calculated. Bonding strength between substrates.
Application range
The scratch test is mainly used to detect and evaluate the anti-shear, scratch, planing, scratch and engraving properties of materials such as anodized materials, rigid organic materials, powder coatings, soft metals, plastics, glass and paint adhesives.
Method Standard
GB/T17657-1999, ISO4586-2, JISK6902, Federal series standard, Terrazzo90322-9E-1, UNI9428Furniture, AS/NZSAS2924.2, ASTMC217, CEN series standard, DIN53799, DIN68861-4
KC certification is a mandatory certification system implemented in South Korea for electronic and electrical products, aimed at ensuring that products comply with South Korea\'s safety and electromagnetic compatibility standards. The Korean market has strict quality control over imported goods, and smart rings, as electronic products, must pass KC certification in order to be legally sold in the Korean market.
CE-RED certification is a mandatory compliance requirement of the European Union for wireless devices. For smartwatches with wireless functions such as Bluetooth and Wi Fi, its importance is mainly reflected in the following three aspects.
The Brazilian market has enormous potential, but in order to successfully enter, ANATEL certification is an essential first step. As an authoritative standard certified by the Brazilian Communications Authority, ANATEL certification is not only a guarantee of product quality, but also a legal entry threshold into the Brazilian market.
The scratch test is one of the commonly used standard methods for testing the bonding strength between the surface film and the base material. Use a material with a hardness greater than the surface film to make a sharp tip to scratch on the surface of the sample or workpiece.
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