QC-26 Elements Standard
CPI International's Peak Performance Multi Element standards are produced in a controlled environment using ultra high-purity starting materials with NIST traceability and with ISO 17025 accordance. Each standard is verified instrumentally and gravimetrically and comes with a Certificate of Analysis and MSDS. CPI guarantees the accuracy of our stock Peak Performance Single-Element standards to +/- 0.5% for 18 months from date of shipment.
- Combined QC7 plus QC19