Copper standard solution, traceable to SRM from NIST Cu(NO3)2 in HNO3 0.5 mol/l 1000 mg/l Cu Certipur ,

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._x000D_
_x000D_
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation. _x000D_
_x000D_
Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.