WP PCBs in Water Back Catalog number: 38091 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678535 4-Chlorophenoxyacetic acid, 100 µg/ml, Acetonitri Price on request 50659 Manganese (Mn) Price on request N-12147-100MG Heptachlor, 100mg Price on request