EPA Method 8240A - Purgeable Surr Std Back Catalog number: 20002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681469 D5-Chlorobenzene, 10.0 µg/ml, Methanol, 10ml Price on request 18000-0645-100AN1 Iopromide, 100µg/ml in Acetonitrile, 1ml Price on request 70409 1,3,5-Trichlorobenzene, 1000µg/ml in MeOH, 1ml Price on request