WS Disinfection By-Products - Cal Check 2 Back Catalog number: 93984 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C20590400 7H-Benzo[c]fluorene, 10mg Price on request 97784 TCEQ Method 1005 Price on request 50604 ICP Mix - 1.0 µg/mL Price on request