EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10655.3-100-MX U-{13C3}-Melamine Price on request 673384 Metolcarb, 10.0 µg/ml, Acetonitrile, 10ml Price on request 3750.6-K-IO 1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml Price on request