All Inorganic CRM (Certified Reference Materials), are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025
All ICP & ICP-MS CRM (Certified Reference Materials), are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. Certified values and related uncertainties are obtained on the basis of two independent testing methods whenever it is possible. Direct traceability to NIST/BAM.
All EPA Standards are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. Certified values and related uncertainties are obtained on the basis of two independent testing methods whenever it is possible. Direct traceability to NIST/BAM.
The U.S. Environmental Protection Agency (EPA) announced the Draft Sixth Contaminant Candidate List (CCL 6) in 2026 under the Safe Drinking Water Act (SDWA). CPAchem offers inorganic calibration and reference standard solutions for selected elements and inorganic contaminants associated with the Draft CCL 6, supporting analytical laboratories in drinking water testing, research and monitoring applications.
All IC Standards are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. Certified values and related uncertainties are obtained on the basis of two independent testing methods whenever it is possible. Direct traceability to NIST/BAM
All AAS Standards are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. Certified values and related uncertainties are obtained on the basis of two independent testing methods whenever it is possible. Direct traceability to NIST/BAM. Modifiers are produced by CPAchem using high-purity metals or salts in sub-boiling distilled acids. CPAchem’s quality system is currently ISO 9001 certified.
High Purity Compounds CRM are produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. Certified Assay and Purity. The metal and anion impurities in the high purity material are determined using a variety of measurement methods. The quantity values for the individual impurities are given as additional information.
