GC/MS Calibration Standard Mix #1 Back Catalog number: 43027 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678176 Phorate-oxon-sulfone, 100 µg/ml, Cyclohexane, 1m Price on request 13817-IO5 Phthalic acid ester - Mix 7, 1000g/ml in IO, 5ml Price on request 677528 4,4'-DDD, 250mg Price on request