10′000 mg/L Na in 5% nitric acid,
prepared with high purity NaNO3, HNO3 TraceSELECT® and water TraceSELECT®Ultra.
This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO Guide 34. This CRM is traceable to SI unit kg and measured against NIST- SRM.
content incl. uncertainty and expiry date are given on label.
Information about trace impurities are stated in the enclosed
certificate (available as download: http://www.sigma-aldrich.com).
TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC
TraceSELECT is a registered trademark of Sigma-Aldrich Co. LLC