Calibration Standard Mix 4 Back Catalog number: 53036 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DD-124-S 1,2,4-Trichlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane Price on request 93140 Aniline Standard Price on request 30051 EPA Method 550 Analytes Price on request