Standard gases are the core of gas reference materials, serving as the “benchmark ruler” for achieving metrological traceability and transfer in fields such as environmental monitoring, industrial process control, and high-end manufacturing. Their homogeneity, stability, and accuracy directly determine the reliability of measurement results. However, when standard gases are filled into high-pressure containers, their components often undergo adsorption, desorption, or chemical reactions with the inner walls of the containers, leading to value drift over time. This challenge is particularly prominent in low-concentration, multi-component systems containing reactive substances such as H₂S and NH₃.
I. Revision of International Standards: China Leads in Metrological Discourse Power
In November 2025, a working proposal for the revision of the ISO 17034 international standard, put forward by experts from the China National Accreditation Service for Conformity Assessment (CNAS), was adopted by a large majority. Chinese experts will serve as co-conveners of the standard revision working group. This marks a historic breakthrough for China in international standardization in the field of reference materials. ISO 17034 is the global fundamental basis for the accreditation of reference material producers, which has long been dominated by Europe and the United States. The revision led by China this time is of great significance for upgrading China’s industrial level and promoting products to go global.
The revision is expected to strengthen requirements for digital traceability, stability prediction models, uncertainty evaluation, and green production, driving the industry to shift from “value transfer” to “intelligent traceability”.
II. Container Technology: The Cornerstone of Stability
The stability of standard gases is closely related to container materials and inner wall treatment processes. Traditional carbon steel cylinders have been phased out due to their strong adsorptivity, and specially treated aluminum alloy cylinders have become the mainstream. Wuhan Newradar Special Gas Co., Ltd. possesses leading technologies in this field, with its CL-1 and CL-2 series aluminum alloy cylinder treatment technologies reaching an advanced domestic level.
The CL-1 technology adopts an inert coating, which is especially suitable for filling corrosive electronic gases such as silane, hydrogen chloride, and ammonia; the metallic coating of CL-2 technology is applicable to general corrosive and non-corrosive gases. Data show that the concentration decay rate of H₂S/N₂ stored in high-quality coated cylinders for 180 days can be reduced by one order of magnitude compared with that in untreated cylinders. With 28 years of experience, Newradar can provide cylinder solutions that meet the stringent requirements of high-end fields such as semiconductors and environmental monitoring.
III. Preparation Technology: Upgrading to Dynamic and Intelligent Systems
The gravimetric method is the core process for preparing high-precision standard gases. In recent years, new technological trends have emerged: ultrasonic-assisted turbulent mixing technology can greatly shorten the mixing cycle; the intelligence of dynamic dilution systems enables precise control of uncertainty in high-ratio dilution; and in-situ generation technology provides the possibility for on-site real-time calibration.
Wuhan Newradar Special Gas Co., Ltd. has fully introduced internationally advanced production and analysis equipment as well as quality management concepts. Through its independently developed mixing system, the company can precisely control the mixing ratio of multiple gases. In cutting-edge fields such as hyperpolarized gases, its technology can shorten the time of pulmonary nuclear magnetic resonance imaging to the second level, demonstrating profound technical accumulation.
IV. High-End Applications Drive Precision Demands
- Semiconductor Manufacturing: As processes enter the sub-3-nanometer node, the impurity tolerance for process gases drops to the ppb level. Trace amounts of metal ions and moisture in special gases can be the main cause of wafer defects.
- Environmental Monitoring and Carbon Trading: Driven by regulations such as the national carbon market, the demand for standard gases for monitoring is growing rapidly, with strict requirements for special indicators such as δ¹³C < -28‰.
- Medical and Cutting-Edge Scientific Research: From Helicobacter pylori breath tests to diagnostics for nuclear fusion devices, high-purity, specifically isotope-labeled standard gases are key reagents.
V. Quality Control and Domestic Substitution
Industry thresholds are constantly rising. By the end of 2025, only 19 institutions nationwide possessed both ISO/IEC 17025 and ISO 17034 certifications. Wuhan Newradar Special Gas Co., Ltd. has established a triple quality control system covering raw material testing, process monitoring, and finished product verification, and has obtained relevant certifications. Its products serve numerous universities, research institutes, and leading enterprises.
For a long time, the high-end standard gas market has been dominated by international giants. With the improvement of the national metrological benchmark system and the introduction of mandatory compliance requirements, the process of domestic substitution is accelerating. Domestic leading enterprises such as Newradar are gradually gaining trust in the high-end market by virtue of their complete supply chains (stable cooperation with well-known enterprises at home and abroad) and technical service capabilities.
VI. Future Trends: Intelligence, Greening and High-End Orientation
The standard gas industry will present three major trends in the future: first, intelligent technological integration, using AI to optimize gas distribution parameters and realizing full-chain traceability of “one code per cylinder” based on blockchain; second, green production, responding to the “dual carbon” goals, controlling emissions and developing environmentally friendly products; third, accelerated domestic substitution. With the improvement of domestic metrological capabilities and standardized market access, local enterprises with technical strength will usher in greater development space.
Standard gases are the “invisible guardian” of quality and safety in modern industry. From China leading the revision of international standards to technological breakthroughs in container treatment and preparation processes, the industry is in a period of profound transformation. As China’s manufacturing industry moves toward high-end development, the market demand for standard gases is shifting from “meeting standards” to “leading standards”. In this process, local enterprises represented by Wuhan Newradar Special Gas Co., Ltd., which possess solid technical strength and a complete quality system, will play an increasingly critical role in safeguarding the security of the national industrial and supply chains and serving scientific and technological innovation.
Post time: Mar-17-2026