Gas Internal/Surrogate Standard Back Catalog number: 92805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678495 Pyridaphenthion, 100 µg/ml, Acetonitrile, 5ml Price on request 679797 Flumequine, 100 µg/ml, Methanol, 1ml Price on request X9175 Pentachloroethane Price on request