EPA Method 548 Analyte Back Catalog number: 30047 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684306 trans-1,3-Dichloropropene, 250mg Price on request C12725510 2,5-Dimethylbenzaldehyd-2,4-dinitrophenylhydrazone, 100mg Price on request 92627 a,a,a-Trifluorotoluene Price on request