EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 38314 CWA Triazine Pesticides Price on request 674673 2,6-Bis-(1-phenylethyl)phenol, 10mg Price on request 676575 Propaquizafop, 100mg Price on request