EPA Method 8250/8250A Cal Check Cmpds Acids Back Catalog number: 82508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10458.30-10MG Tetraphenylrecorcinol bis(diphenylphosphate), 99% (LC) Price on request 91700 EPA Method 8150/1658 Herbicide Methyl Derivatives Price on request 43013 2-Fluorobiphenyl Price on request