EPA Method 527 Surrogate Standard Back Catalog number: 95053 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1339.31-50-IO 17 alpha(H),21ß(H)-(22R)-Homohopane, 50µg/mL in isooctane, 1ml Price on request A601797 4-Aminobiphenyl-d9, 10mg Price on request 51044 MA - EPH Matrix Spike Rev 1.0/1.1 Price on request