Used as a reference standard in analytical laboratories for the accurate quantification of 1,2-dichloroethane in environmental samples such as water, soil, and air. Commonly employed in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) to calibrate instruments and validate test methods. Ensures reliable detection and measurement of 1,2-dichloroethane contamination in industrial emissions, groundwater, and wastewater. Also utilized in quality control processes for environmental monitoring and regulatory compliance testing.