EPA Method 548 Analyte Back Catalog number: 30048 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676258 2-Amino-1-naphthalenesulfonic acid, 250mg Price on request 95407 Aroclor 1260 & Tetrachloro-m-xylene Price on request 71790 Aroclor 5432 Price on request