Analysis in accordance with the requirements of ASTM D4815
The ChroZen ASTM D4815 is a gas chromatography system developed by Young In Chromass, specifically configured to meet the requirements of the international ASTM D4815 standard. This standard requires accurate quantification of oxygenated compounds in petrol, including alcohols and ethers, which influence the octane rating and environmental impact of fuels.
The system is based on an architecture combining a 10-port switching valve and two separate columns: a preliminary TCEP microcolumn mounted on Chromosorb P forthe removal of lighthydrocarbons, followed by a non-polar PDMS column for the final separation of oxygenated components. This device allows for precise analysis management thanks to a three-step valve sequence, ensuring the selective removal of interfering compounds prior to detection.
The ChroZen ASTM D4815 stands out for its ability to accurately detect compounds such as methanol, ethanol, tert-butanol, MTBE, ETBE, TAME, and other C1-C4 alcohols. Validation tests have shown that the system offers excellent repeatability over 10 consecutive injections, while meeting the strict tolerances defined by the standard. The linear correlation of the calibration curves exceeds 0.999 for all analytes, with mass concentrations below 0.1% mass, demonstrating the analytical reliability of the system.
The software approach is based on an optimised chromatographic control platform, combined with robust hardware and an ergonomic user interface. The entire system is designed to offer laboratories total control over analytical data while ensuring environmental and technical regulatory compliance.
This system is particularly useful for laboratories in the petrochemical, energy and environmental sectors, as well as for any organisation subject to strict regulations on pollutant emissions. It offers a technical solution for monitoring oxygenate levels in a context where clean combustion and energy performance are crucial issues.
