EPA Method 300.0 Anions QC Standard Back Catalog number: 52519 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 53027 Alternate Interferents B Price on request DF-24-S 2,4-Dichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request