DOW 624 Volatile Internal/Surrogate Standard Back Catalog number: 93323 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681581 Trichloroacetic acid, 250mg Price on request 42001 EPA Method 601 Analytes, 2000µg/ml in MeOH, 1ml Price on request 79365 Diethyl sulfate Price on request