EPA Method 524 & 624 - Internal Standard Back Catalog number: 19794 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684511 Indaziflam, 10.0 µg/ml, Acetone, 10ml Price on request 0013.16-10MG 1,3-Dinitropyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 75321-20-9 Price on request 32371 n-Propylbenzene Price on request