EPA Method 525 - PCB Standard Back Catalog number: 19063 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678256 15N3-Atrazine, 100 µg/ml, Acetonitrile, 1ml Price on request 71143 Methylhydrazine Price on request S-4371-100-5AC EPA 528 rev. 1.0 Sample Fortification Solution 2 100µg/mL in acetone; unit: 1x5mL 2396.8 2,4-Dimethylphenol-3,5,6-d3 [93951-75-8] Price on request