Low-level 1,2,3-Trichloropropane intended for use with California method SRL 524M. One 2 mL flame-sealed ampule yields 100 mL after dilution. Each lot contains 1,2,3-Trichloropropane (TCP) at 0.1 - 2 mg/L prior to dilution. Final concentration range after dilution is 5-100 ng/L.