EPA Method 551 “Mix B” Back Catalog number: 30395 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11698.12-100-IO 2,3,4',5-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 675763 Hymexazol, 20mg Price on request C335052 Chlorhexidine-d8 Dihydrochloride, 1mg Price on request