Merck, COD500-100ML, COD 500 mg/L Calibration Standard

General description
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
Application
This CRM is intended for the calibration and validation of analytical instruments used to measure chemical oxygen demand (COD).
Features and Benefits

• Verified and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
• Traceable to the SI and higher order standards from NIST
• Assigned value based on a purity determination by mass balance and gravimetrically prepared value
• Homogeneity assessed in accordance with ISO Guide 35
• Available in high-density polyethylene bottles of volumes 100 and 500 mL for an assured safe delivery
• Accompanied with a certificate of analysis (CoA) having information on the expiry date for an effective audit
• Prepared using deionized water as a solvent

Other Notes
Values of analytes vary lot to lot. Some lots may not contain all analytes.