EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674002 3,4-Dichloroaniline, 100 µg/ml, Methanol, 5ml Price on request 9564.16-50-AN 6:2 DiPAPS, 50µg/mL, Solvent-acetonotrile, Unit 1mL, # of units-1, Cas.no. 57677-95-6 Price on request 19000-0451-50AN5 N-(1,3-Dimethylbutyl)-N´-phenyl-1,4-phenylenediamine, 50µg/ml in Acetonitrile, 5ml Price on request