Used as a reference standard in environmental testing laboratories to calibrate analytical instruments for the detection and quantification of 1,2,3-trichloropropane in water, soil, and air samples. Commonly applied in gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses to ensure accurate measurement of this toxic contaminant, especially in regulatory compliance testing and pollution monitoring. Also utilized in research studies assessing groundwater contamination and remediation effectiveness.