WP Low Level Perchlorate Back Catalog number: 55199 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3308.12-100-IO 2,2',4,4',6,6'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 33979-03-2 Price on request 38089 Total Organic Water Pollution (WP) (Kit) Price on request 33921 1,2-Dichlorobenzene Price on request