PCB180 in octane is primarily used in research and analytical laboratories as a reference standard for environmental testing. It helps in the identification and quantification of polychlorinated biphenyls (PCBs) in various samples, such as soil, water, and air. This chemical is essential for calibrating instruments like gas chromatographs and mass spectrometers, ensuring accurate detection of PCB contamination. Additionally, it aids in studying the environmental impact and persistence of PCBs, contributing to the development of remediation strategies and regulatory compliance. Its use is critical in monitoring and controlling pollution levels in ecosystems.