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 employed in gas chromatography and mass spectrometry methods to ensure accurate measurement of trace contaminants, especially in regulatory compliance testing for drinking water and industrial emissions. Also utilized in research studies focused on groundwater contamination and remediation technologies due to its persistence and toxicity in the environment.