SDWA Perchlorate Back Catalog number: 55099 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677366 Anthracene, 10.0 µg/ml, Cyclohexane, 10ml Price on request 9392.20-50UG 8:2 Di-PAPS, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no. 678-41-1 Price on request 58134 Selenium (Se) Price on request