EPA Method 502/524 Volatile Standard Back Catalog number: 35021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1378-S 1,3,7,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 676194 Mexacarbate, 10.0 µg/ml, Acetonitrile, 10ml Price on request 673077 Furosemide, 250mg Price on request