The production of CRMs involves several rigorous steps:
Selection of Material: Choosing a highly pure and stable material that is representative of the type of catalyst being studied. Characterization: Extensive testing and analysis using multiple techniques to determine the exact composition and properties of the material. Certification: The material is certified by an authoritative body, ensuring its traceability to national or international standards. Validation: The CRM is validated through inter-laboratory comparisons to confirm its reliability and accuracy.
