On January 28 local time in Switzerland, and on January 29 Beijing time—the day of the Spring Festival—good news came from the International Organization for Standardization (ISO): ISO 11983:2025 “Road Vehicles — Safety Glazing Materials — Test Method for Electrically Adjustable Glass” was officially released. The standard was led by China (with CTC as the lead author) and developed with the participation of the United States, the United Kingdom, Germany, Japan, Italy, Sweden, and other countries.

Amid the rapid development of the global automotive and glass industries, after multiple rounds of rigorous discussion and repeated verification, the first international standard for smart glass in the automotive industry has been officially released. This is also the first standard publicly published in this field worldwide, providing guidance for the industrial development and standardization work of automotive smart glass in various countries.

Image source: Guangyi Technology

This standard focuses on smart glass for automotive applications. For products based on different technical routes—including organic electrochromic materials, inorganic all-solid-state electrochromic materials, suspended particle light-adjusting materials, polymer dispersed liquid crystal materials, and dye liquid crystal materials—it systematically specifies basic test methods, from material stability testing to the precise evaluation of light-adjusting performance, ensuring reliable product quality, providing technical support for industry development, and driving automotive smart glass toward a more mature stage of development.

Image source: Guangyi Technology

Driven by new quality productive forces, the innovative product of automotive smart glass has emerged. It is closely linked to the new energy vehicle industry and, with features such as intelligent dimming, creates a comfortable driving and riding environment for users. It has become a key driving force for the glass industry's move toward high-end and intelligent development. The release of this international standard fully reflects the high attention of the international community. It will greatly boost confidence in the development of the domestic smart glass industry, encourage enterprises to increase R&D investment, promote the transformation and upgrading of the domestic glass industry, and paint a more splendid new picture for the development of the glass industry.