What does E4 on car glass mean?
2 Answers
E4 represents production in the Netherlands. Below are relevant details: 1. Origin: The E mark originates from regulations (Regulation) issued by the Economic Commission for Europe (ECE). Currently, ECE includes 28 European countries, encompassing not only EU member states but also non-EU nations in Eastern and Southern Europe. ECE regulations are recommended for use by member states and are not mandatory standards. Member countries can adopt ECE regulations or continue using their own national regulations. 2. Market acceptance: Typically, ECE member states are willing to accept test reports and certificates that comply with ECE regulations. E mark certification covers products that are components and system parts. Products that obtain E mark certification are market-accepted. Common E mark certified products in China include automotive bulbs, safety glass, tires, warning triangles, and automotive electronic products.
I specifically looked up relevant information, and the E4 marking on car glass is actually a certification mark from the European Economic Commission. To be precise, the number 4 represents the Dutch certification body. Every time I see this mark in the corner of my windshield, I know this piece of glass complies with EU safety standards. It’s not just randomly printed—it means the glass has undergone rigorous testing for impact resistance, light transmittance, and other aspects. I recall that different numbers represent different countries, for example, E1 is German certification. This marking is particularly important for used car buyers; they should carefully check whether all windows have complete certification, as missing marks could affect safety. Additionally, here’s a lesser-known fact: some glass exported from China also bears the E4 mark to meet export standards.
