EPA Method 418.1 - TPH IR Standard Back Catalog number: 98245 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended T526140 gama-Tocopherol, 50mg Price on request 675650 Pyridalyl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 50257 KHP Price on request