EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681686 Pentachlorophenol, 100 µg/ml, Methanol, 1ml Price on request 10160.12-K-ME Carisoprodol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 78-44-4 Price on request 57056 Barium (Ba) Price on request