On October 14, World Standards Day, ISO 13837:2021 Road vehicles — Safety glazing materials — Methods for the determination of solar transmittance was officially released. The standard was led by China, revised by CTC, and assisted in revision by the China Automotive Technology and Research Center and Fuyao Glass Industry Group.

This standard is currently the only international standard in the world targeting the optical parameters and energy-saving characteristics of automotive safety glass. Relevant national or regional standards all originate from it, giving it an absolutely forward-looking and fundamental position in the field of automotive safety glass optical parameters.

This revision of the standard unified the calculation methods for various optical parameters in the standard, and added spectrophotometric testing and calculation methods for "visible light transmittance (TL)" and "chromaticity." It has played a positive role in helping global automotive safety glass enterprises benchmark product optical parameters, breaking down international trade barriers, and promoting the export of domestic automotive safety glass and even the development of the domestic automotive industry. The professional competence of Chinese experts in the optical field has been recognized by peers from various countries, effectively enhancing China's discourse power in international standardization formulation.

The theme of this World Standards Day is "Standards Promote Sustainable Development, Building a Better World Together." The optical performance parameters specified in this standard are closely related to automobile energy saving. They are of positive significance for promoting energy conservation and emission reduction in automobile-related industries and have laid a solid foundation for the early realization of carbon neutrality.

CTC has always attached great importance to standardization work and has trained a large number of technical talents for the country and the industry. It has successively led the formulation and revision and published 12 international standards and 397 national, industry, and local standards; it is leading 2 international standards and 255 national and industry standards under development; it has undertaken 105 reference material development and reproduction projects, with 116 reference materials currently available; it has obtained 1 international patent, 136 invention patents, 587 utility model patents, and 5 design patents; and it owns a total of 244 computer software copyrights.

Years of technological accumulation have injected sustained innovation momentum into the Group's high-quality development. By providing customers with high-value-added, high-end technical services, CTC has gradually become a leader in the domestic inspection and testing industry, especially in the field of construction engineering and building materials inspection. In the future, the company will focus on building the "Four-whole" ecological business structure, realize "cross-region and cross-domain" strategic development, achieve resource complementarity and technology interconnection, and actively strive to achieve new accomplishments in the inspection and certification industry.