EPA Method 418.1 - TPH IR Standard Back Catalog number: 98245 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90999 Dibromofluoromethane Price on request 72207 Metformin, 1000μg/ml in MeOH, 1ml Price on request 13900-0030-100ME5 Tri-iso-butyl phosphate, 100µg/ml in MeOH, 5ml Price on request