Perchlorate (ClO4-) Back Catalog number: 57002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EN-1948STK PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 96454 Volatile Mix Price on request 673741 Bendiocarb, 100 µg/ml, Ethyl acetate, 5ml Price on request