products IEC 62368-1 G.13.6.2 and G.4 Coating Scratch Resistance Test Device The LS-B30 coating scratch resistance test device complies with the requirements of IEC 62368-1:2018 G.13.6.2 and G.4 (GB/T 4943.1-2022 Appendix G.13.6.2 and G.4) and is June 19, 2025