EPA Method 418.1 - TPH IR Standard Back Catalog number: 98245 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681556 D14-Trifluralin, 10mg Price on request 680964 2-Octanone, 1ml Price on request C15712100 4-tert-Octylphenol, certified, 0.25g Price on request