EPA Method 552.2 - Surrogate Standard Back Catalog number: 30109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72604 Sulfamethoxazole, 1000µg/ml in MeOH, 1ml Price on request T526175 D-g-Tocotrienol, 5mg Price on request 32911 1-Methylnaphthalene Price on request