General description: 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.
Certified 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).
Analysis Note: 1000 mg/L Y in 2% nitric acid, prepared with high purity Y2O3, HNO3 TraceSELECT® and water TraceSELECT®Ultra.
Legal Information: TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC
Concentration: 1000 mg/L Y in nitric acid