EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96806 Custom Internal Standard Mix Price on request 0016.14-10MG 1,4-Anthraquinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 635-12-1 Price on request 675410 Bufencarb, 100 µg/ml, Cyclohexane, 1ml Price on request