Standard samples and control samples both refer to national standard reference materials; they are essentially the same substance. However, a standard sample is used just before the instrument leaves the factory to set the elemental content values, which ensures the testing instrument's repeatability and accuracy.
So when do you need a control sample? Our instruments, such us infrared sulfur analyzer, use a comparative analysis method. When a customer uses the elemental analysis instrument, slight changes in its mechanical performance—due to differences in air pressure, humidity, or temperature—can cause the light intensity to drift from the values set during the factory calibration. At this point, a control sample is needed to calibrate the instrument's difference coefficient, which helps achieve accurate test results.
Therefore, control samples are indispensable during the instrument's operation. Customers select the appropriate control sample based on the specific material grade they need to test.
At SYENS, we deliver high-precision elemental analysis instruments (like the infrared carbon sulfur analyzer) that combine advanced R&D, reliable performance, and cost efficiency. From carbon sulfur analyzer to ONH analyzer and spark OES spectrometer, we provide integrated solutions that support accurate industrial quality control and long-term laboratory success.
SYENS specializes in elemental analysis instruments, including infrared carbon sulfur analyzers, spark OES spectrometers, and oxygen, nitrogen, and hydrogen analyzers for precise metal and material composition testing.
Our instruments are widely used in metallurgy, mining, aerospace, automotive manufacturing, third-party laboratories, and research institutions requiring accurate material composition analysis and quality control.
SYENS integrates high-frequency induction combustion, infrared absorption detection, and advanced control systems to ensure stable, repeatable, and ppm-level precision in elemental analysis applications.
Yes. SYENS offers installation guidance, technical training, calibration support, and responsive after-sales service, serving customers in more than 20 countries worldwide.
