EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFRS-014S Tri(2-isopropylphenyl) phosphate, 100µg/ml in Toluene, 1ml Price on request BB-3 4-Bromobiphenyl, 1.2ml x 50ug/ml, nonane Price on request 672980 Trimethoprim, 250mg Price on request