Cobalt Standard for ICP-MS, 100 mL (41798-100ML)

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST. Certified content incl. uncertainty and expiry date are given on the certificate. Information about trace impurities are given on the certificate. Download your certificate at: http://www.sigma-aldrich.com. 1 mg/L Co in 2% nitric acid, prepared with high purity Co metal and HNO₃

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