EPA Method 8121 Internal Standard Back Catalog number: 81203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673674 Pirimiphos-methyl, 100 µg/ml, Ethyl acetate, 5ml Price on request 95406 Aroclor 1254 & Tetrachloro-m-xylene Price on request M745800 Moxonidine, 10mg Price on request