EPA Method 524.3 - Surrogate Standard Back Catalog number: 95489 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MET-12007A-100MG Phthalamic acid, 100mg Price on request 71579 4-Nitrophenol-PFB derivative Price on request BDF-4 4-Bromodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request