This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Download your certificate at https://www.sigma-aldrich.com to view certified values, including uncertainty, date of expiry, and detailed information about trace impurities.

Cobalt ICP Standard can be used as a calibration standard in elemental analysis by Inductively coupled plasma Optical Emission spectrometry (ICP-OES) method.

10 g/L Co in 5% nitric acid, prepared with high purity Co metal, HNO₃ and water

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Detailed information on our complete workflow solutions for ICP-AAS can be found in our Brochure: High-Purity Chemicals for Inorganic Trace Analysis.

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