Calibration Standard Set Back Catalog number: 53042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30106 EPA Method 552.2 - Methyl Haloacetic Acids Price on request 50756 Spiking Standard #2 Price on request DF-234-S 2,3,4-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request