[Group News] We’ve passed! Tongyou Group’s CNAS‑accredited laboratory has officially been certified by the National Accreditation Service, with inductance testing capabilities meeting national standards!
2025-09-04 13:59
Recently, Tongyou Group’s laboratory has officially passed the assessment of the China National Accreditation Service for Conformity Assessment (CNAS), successfully obtaining CNAS accreditation and becoming the first in the inductance‑testing field to meet international standards. This milestone not only marks a new phase for Tongyou Group in the realm of electronic component testing but also represents a significant achievement in its technical capabilities and innovative development.
Recently, Tongyou Group’s laboratory has officially passed the assessment of the China National Accreditation Service for Conformity Assessment (CNAS), successfully obtaining CNAS accreditation and becoming the first in the inductance‑testing field to meet international standards. This milestone not only marks a new phase for Tongyou Group in the electronic components testing sector but also represents a significant achievement in its technological prowess and innovative development.
Tongyou Group’s laboratory, a pioneer of innovation in the electronic information sector, has, since its establishment in 2020, shouldered the noble mission of advancing the research and development of domestically produced electronic components and driving breakthroughs in testing and evaluation technologies. Our facility is not only a state-of-the-art research hub spanning 200 square meters but also a nurturing cradle for passion and innovation. It is equipped with cutting-edge experimental instruments and simulation software valued at tens of millions, with core equipment sourced from world‑leading brands, ensuring that every test delivers precise, reliable, and highly efficient results.
The laboratory is scientifically laid out, with dedicated spaces for electrical performance testing, mechanical testing, and environmental reliability testing. Each area is staffed by specialized technical personnel, providing comprehensive support for critical experimental tasks such as electronic component evaluation, failure mode analysis, structural design optimization, reliability verification, and electrical performance assessment.
The laboratory brings together an elite team of more than ten specialized experimental personnel who collaborate closely with product managers, senior R&D engineers, and quality‑control experts, forming a robust technical team that provides comprehensive technical support and services throughout the research, development, and production processes.

Proven Expertise, Embarking on a New Phase of High Standards
CNAS is the English abbreviation for the China National Accreditation Service for Conformity Assessment. Established by the State Administration for Market Regulation, it is the most authoritative laboratory accreditation body in China. Obtaining CNAS accreditation signifies that Tongyou Group’s laboratory meets nationally and internationally recognized standards of management and testing capability, enabling it to use the CNAS national laboratory mark within the scope of accreditation and issue test reports bearing the accreditation mark, thereby enjoying high credibility and strong market competitiveness.
The scope of this accreditation covers numerous critical test items for inductors, including environmental tests (constant damp heat, temperature cycling, low‑temperature and high‑temperature life testing) and mechanical tests (high‑frequency vibration, impact—using specified pulses—and board bending, among others), demonstrating that we have established a comprehensive and rigorous testing system in the field of magnetic component evaluation.



Innovation-driven, paving the way for new growth in the inductor industry.
Although inductors are small, they are one of the core components for “energy transmission and signal processing” in electronic devices. Particularly in high-growth sectors such as 5G communications, automotive electronics, and industrial power supplies, increasingly stringent requirements are being imposed on inductor performance—namely, high frequency response, high efficiency, and superior stability.
With the attainment of CNAS accreditation, Tongyou Group has not only solidified its leading position in the field of electronic component testing but also advanced industry standards and product innovation in the inductor sector, providing robust technical support to companies across the entire supply chain.
Forge ahead with unwavering commitment—quality never compromises.
Tongyou Group has always adhered to a philosophy of technology‑driven innovation and quality first. The attainment of CNAS laboratory accreditation is the well-deserved recognition of our years of sustained investment in R&D and our ongoing efforts to refine our quality management system. Looking ahead, Tongyou Group will seize this opportunity to further enhance its testing capabilities and service standards, delivering more comprehensive, professional, and timely solutions to our customers, and working together with our partners to drive continuous progress across the industry.



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