Nitrosamine Standard Back Catalog number: 90982 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673498 4,4'-Dichlorobenzophenone, 250mg Price on request MI505-100 Reagent kit for 100 tests (Ammonia MR) Contains: 1 x 20mL NH3-1, 1 x 21mL NH3-2 Price on request 11765.12-100-IO 2,2',3,4,5,6,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request