EPA Method 548.1 Analyte Back Catalog number: 30277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678115 Benzyldimethylhexadecylammonium chloride, 100 µg/m Price on request 11227.22-50MG Losartan potassium,neat,neat,50mg, Price on request 11695.12-100-IO 2,3,4,4'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request