CWA Perchlorate Back Catalog number: 55116 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended FHXSA-I Perfluoro-1-hexanesulfonamide, 1.2ml x 50ug/ml, isopropanol Price on request 677946 TFNA-AM, 100 µg/ml, Acetonitrile, 1ml Price on request DF-14678-S 1,4,6,7,8-Pentachlorodibenzofuran (or 2,3,4,6,9), 1.2mL x 50ug/mL, nonane Price on request