Scratch resistance tester YW-1151 Complied standards: Article 21.2 of GB4706.1-2005 Safety of Household and Similar Electrical Appliances Part 1 General Requirements, Article 2.10.8.4 of GB4943.1-2011, IEC60335-1, IEC60950 Purpose: Used for scratch testing on easily accessible parts or printed boards of solid insulation for household appliances and similar products, ensuring that the material has sufficient strength and is not punctured by sharp tools Sample scope: household appliances, printed circuit boards Structure and function: The scratch resistance test of the coating is carried out using hardened steel needles. The end of the steel needle should be conical with a top angle of 40 °, and its tip should be rounded and polished with a radius of 0.25mm ± 0.02mm. The scratch passes through five pairs of conductive parts, including the…