EPA Method 525 - Semi-Volatile Mixture Back Catalog number: 30128 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677528 4,4'-DDD, 250mg Price on request 71662 2,3,5-Trichloroanisole Price on request 95404 Aroclor 1242 & Tetrachloro-m-xylene Price on request