D8-4,4'-DDD, 100 µg/ml, Acetone, 1ml Back Catalog number: 684690 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50320 ICP-MS Mix #1 Price on request 11789.12-50-NN 2,4,8-Trichlorodibenzofuran,50 µg/mL,n-nonane,1mL, Price on request 95259 PCB Mix 2.5 ppb Price on request