China Hosts The Official Release Of International Standards For Diamond Application Industry

On July 7, 2025, the international standard was formulated under the leadership of Henan United Precision Materials Co., Ltd ISO 6031:2025《ISO 6031:2025 Functional extenders for special application - Nanoscale diamonds for polymer composites》, Approved by the International Organization for Standardization (ISO), officially released globally. ( https://www.iso.org/standard/81969.html ). This is the first international standard in the global diamond industry to be developed under the leadership of China, marking a milestone leap for Chinese superhard material companies from "following" to "leading" in the field of international standards.

 

[Background and Significance of Standards]

Nano diamond, as a high-performance functional filler, has significant potential in improving the mechanical strength, thermal conductivity, wear resistance, and functionality of polymer composite materials such as engineering plastics, special rubber, functional coatings, etc. It is widely used in aerospace, precision electronics, new energy vehicles, medical devices, and other fields.

However, for a long time, there has been a lack of unified standards for nanodiamonds used in polymer composite materials worldwide. This has led to vague material definitions, inconsistent evaluation methods for key performance indicators (such as particle size distribution, surface modification, dispersion stability), and a lack of standardized evaluation of the impact on the final composite material properties. The lack of standards has constrained the industrialization process and market standardization development of this technology.

 

The release of ISO 6031:2025 international standard fills the international standard gap in this critical field and is of great significance:

Establishing a unified standard: providing a common technical language and quality benchmark for global nanodiamond producers, polymer composite material manufacturers, and downstream application parties to follow.

 

● Promoting technological innovation and application: A clear standard framework can help reduce technological barriers and accelerate the research and large-scale application of nanodiamonds in high-end polymer composite materials.

 

Ensuring product quality and reliability: Standardized definitions, testing methods, and performance evaluation standards will enhance the quality consistency and performance predictability of related products.

 

Promoting the healthy development of industries: It is conducive to regulating market order, promoting collaborative cooperation and fair competition in the upstream and downstream of the global industrial chain.

 

Standard Core Content

The ISO 6031:2025 standard systematically constructs a complete framework for the application of nanodiamonds in polymer composites, with core contents including:

 

Clear definition of scope and classification: Clarify the types of nanodiamonds that are applicable to the standard (such as based on specific particle size, source, and surface functionalization treatment), and define the boundaries for what constitutes nanodiamonds suitable for polymer composites.

 

Establish core performance indicators and testing standards: Strictly define the key parameter requirements for nanodiamond raw materials, such as purity, crystal structure integrity, surface chemical groups, particle size and its distribution; The authoritative testing method for evaluating the dispersion stability of nanodiamonds in polymer matrices has been established, which is a key prerequisite for exerting their strengthening effect.

 

● Develop performance evaluation standards for composite materials: Provides a standardized process for scientifically evaluating the specific effects and improvement effects of adding nanodiamonds on the mechanical properties (strength, toughness), thermal properties (thermal conductivity, heat resistance), friction and wear properties, electrical properties, and other aspects of polymer composite materials. This makes performance comparison and prediction possible.

● Incorporating safety and environmental considerations: The standard focuses on the potential safety and environmental impacts of nanomaterials in the application process, guiding the responsible development of the industry.

In short, ISO 6031:2025 establishes:

Unified 'quality standard': providing evidence for high-quality nanodiamonds.

Reliable 'performance predictor': making composite material design more precise and efficient.

Smooth 'industrial dialogue bridge': promoting collaborative innovation in the global industrial chain.

Deep impact: Empowering global industrial upgrading

The release of ISO 6031:2025 has significant implications beyond a single enterprise or country, and will have a wide-ranging and far-reaching positive impact on the global new materials industry

Accelerate the industrialization process: eliminate the uncertainty caused by missing standards, enhance the confidence of investors and downstream users, and promote the large-scale application of nanodiamonds in polymer composite materials.

● Improve product quality and reliability: Provide clear quality guidelines for manufacturers, reliable performance guarantees for end users, and significantly enhance the performance consistency and service life of final composite material products.

● Promote technological innovation and fair competition: Under a unified standard framework, global enterprises can focus on material performance optimization, application technology innovation, and cost control from a fair starting line, driving overall technological progress in the industry.

Reduce transaction costs and risks: Reduce communication costs and trade frictions caused by confusion in specifications and inconsistent testing methods, and lower supply chain risks.

Expanding application boundaries: The establishment of standards has laid the foundation for exploring the wider and more demanding polymer application scenarios of nanodiamonds, such as extreme environments and biocompatible materials.

Leading by standards, shaping the future together

The implementation of ISO 6031:2025 will contribute to the development of the global nanodiamond and polymer composite materials industry towards greater standardization and efficiency. Henan United Precision Materials Co., Ltd. will continue to invest in research and development, optimize product performance, and actively promote the application of this standard. Together with global partners, we will promote the progress of nanodiamond technology and its application expansion in a wider range of fields.