Custom Reference Material for Carbon and Sulfur Analysis

TAZ GmbH has successfully completed a certification project for one of the largest companies in the steel industry. A pig iron powder was manufactured and certified for carbon and sulfur analysis using infrared absorption after combustion, adhering to the requirements of DIN EN ISO 17034 and ISO Guide 35.

TAZ GmbH conducted a detailed assessment of the homogeneity of the entire 600 kg of material. Following this, a characterization round-robin test was organized with nine qualified testing laboratories, allowing the material to be characterized specifically for this method.

The results were statistically analyzed to check for potential outliers. After determining the expanded uncertainty from the homogeneity investigation and the characterization round-robin, values for the mass fractions of carbon and sulfur were assigned, and the results were consolidated into a certification.

This provides the customer with a certified reference material tailored to their specific needs in large quantities. A comparative report in the form of an interlaboratory study will also be made available to the participating laboratories.