EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN ISO 21068-1 testing. EN ISO 21068-1 specifies definitions and techniques for the preparation of samples for chemical analysis of silicon carbide-containing raw materials and refractory products.
If free carbon is present, the standard includes different types of temperature treatments to gravimetrically determine mass changes. Frequently, the resulting residue is used for other determinations.
Represents a list of analytical methods approximately structured by material composition. However, it is still the user who must prove the applicability of the method, depending on the material and analytical requirements.
EN ISO 21068, parts 1 to 3, also provides methods for qualitative and quantitative determinations of nitrogen content and for the determination of oxygen. Thus, only the total nitrogen and oxygen content is given; Precise determination of non-carbide components (oxides and nitrides) is not possible in this way.
EN ISO 21068, parts 1 to 3, does not provide methods for quantitatively distinguishing between different types of nitride such as silicon nitride, silicon oxy-nitride and sialon.
Normally, the residue is used for other determinations. Therefore, the change in mass is taken into account in calculating the analytical result. The analytical method applied to the residue depends on the matrix and the parameters to be determined. It is up to the user to choose the appropriate analytical method.
EUROLAB assists manufacturers with EN ISO 21068-1 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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