EPA Method 8040A Analytes Mix “B” Back Catalog number: 80412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680032 1,3-Bis(4-nitrophenyl)urea, 50mg Price on request 2479.16-100-IO Di-n-butyl phthalate-3,4,5,6-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 93952-11-5 Price on request 73433 Terephthalic acid Price on request