Final report of CCQM-K96.2023.1: assay of potassium dichromate

Main text The CCQM key comparison CCQM-K96.2023.1, a subsequent comparison to CCQM-K96.2023, was conducted to demonstrate the capability of VNIIM-UNIIM to measure the amount content of oxidants. KRISS served as the coordinating laboratory, with its results linking to the original comparison. Participating institutes may use a method of their choice, but coulometry with potentiometric or amperometric endpoint determination is expected to be used in most cases. The results from VNIIM-UNIIM were in good agreement with the reference value, providing evidence to support the respective CMC claims. To reach the main text of this paper, click on Final Report . Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/ . The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).