DOW 624 Volatile Internal/Surrogate Standard Back Catalog number: 94200 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675553 Chlorthiophos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 58138 Strontium (Sr) Price on request 79615 4,5-Methylenephenanthrene Price on request