Which of the following is true about XRF data in the final report?

Which of the following is true about XRF data in the final report?

• A. Raw data is not included
• B. Calibration certificates
• C. All raw data and laboratory results
• D. Only summarized results

Answer: (C)

The essential idea is that the final XRF report must provide a complete, auditable record of how the results were obtained. Including all raw XRF data (the instrument’s original spectra or counts, along with measurement conditions and any QC checks) plus the laboratory results ensures the data can be independently reviewed, reprocessed if needed, and traced from the instrument to the reported numbers. This transparency supports QA, defensibility, and verification of results, especially if questions arise about instrument performance or data processing along the way. While calibration certificates are useful supporting documents, the most comprehensive and defensible requirement is to include the full set of raw data and laboratory results.

The essential idea is that the final XRF report must provide a complete, auditable record of how the results were obtained. Including all raw XRF data (the instrument’s original spectra or counts, along with measurement conditions and any QC checks) plus the laboratory results ensures the data can be independently reviewed, reprocessed if needed, and traced from the instrument to the reported numbers. This transparency supports QA, defensibility, and verification of results, especially if questions arise about instrument performance or data processing along the way. While calibration certificates are useful supporting documents, the most comprehensive and defensible requirement is to include the full set of raw data and laboratory results.