The article "Rock-Eval 6 Technology: Performances and Developments" by F. Behar, V. Beaumont, and H. L. de B. Penteado discusses the latest version of the Rock-Eval product line, the Rock-Eval 6, which has been commercialized by Vinci Technologies since 1996. The study describes the methodology developed at IFP for reliable data acquisition using the Rock-Eval 6 and evaluates the quality of geochemical parameters obtained. Data were collected from 147 source rocks from various sedimentary basins, representing different organic matter types and maturity stages. Key findings include: - Intrinsic correlations were established between two different Rock-Eval 6 apparatus, demonstrating excellent consistency and reproducibility. - Complete recovery of total carbon (TC) was confirmed by comparing Rock-Eval 6 data with elemental analysis. - The Rock-Eval 6 was used to measure mineral carbon (MinC) and total organic carbon (TOC) through alternative techniques, such as elemental analysis and weight loss after HCl treatment. - Good correlations were observed between Rock-Eval 6 and elemental analysis for TOC, with some deviations when compared to the Leco apparatus. - Preparative pyrolysis was performed on a subset of kerogen samples to confirm the 83% organic carbon content in the S2 peak for all rocks and organic matter types. - The Rock-Eval 6's ability to measure MinC was validated through comparisons with weight loss after HCl treatment and acidimetry. - Excellent reproducibility was observed for all measured parameters, with relative errors less than 2.5%. The study concludes that the Rock-Eval 6 provides reliable measurements of TOC and MinC, allowing for the simultaneous determination of mineral and organic carbon mass balance in rocks. Recommendations are provided for reference samples and analytical methods to calibrate the Rock-Eval 6 over a wide range of carbon concentrations. Additionally, the uniformity between S2 and Tmax values measured by Rock-Eval 2 and Rock-Eval 6 for different rock types was verified, with good correlations observed for S2 and Tmax values.The article "Rock-Eval 6 Technology: Performances and Developments" by F. Behar, V. Beaumont, and H. L. de B. Penteado discusses the latest version of the Rock-Eval product line, the Rock-Eval 6, which has been commercialized by Vinci Technologies since 1996. The study describes the methodology developed at IFP for reliable data acquisition using the Rock-Eval 6 and evaluates the quality of geochemical parameters obtained. Data were collected from 147 source rocks from various sedimentary basins, representing different organic matter types and maturity stages. Key findings include: - Intrinsic correlations were established between two different Rock-Eval 6 apparatus, demonstrating excellent consistency and reproducibility. - Complete recovery of total carbon (TC) was confirmed by comparing Rock-Eval 6 data with elemental analysis. - The Rock-Eval 6 was used to measure mineral carbon (MinC) and total organic carbon (TOC) through alternative techniques, such as elemental analysis and weight loss after HCl treatment. - Good correlations were observed between Rock-Eval 6 and elemental analysis for TOC, with some deviations when compared to the Leco apparatus. - Preparative pyrolysis was performed on a subset of kerogen samples to confirm the 83% organic carbon content in the S2 peak for all rocks and organic matter types. - The Rock-Eval 6's ability to measure MinC was validated through comparisons with weight loss after HCl treatment and acidimetry. - Excellent reproducibility was observed for all measured parameters, with relative errors less than 2.5%. The study concludes that the Rock-Eval 6 provides reliable measurements of TOC and MinC, allowing for the simultaneous determination of mineral and organic carbon mass balance in rocks. Recommendations are provided for reference samples and analytical methods to calibrate the Rock-Eval 6 over a wide range of carbon concentrations. Additionally, the uniformity between S2 and Tmax values measured by Rock-Eval 2 and Rock-Eval 6 for different rock types was verified, with good correlations observed for S2 and Tmax values.