EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0358.6-10MG 2,4-Dimethylthiophene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 638-00-6 Price on request 30058 EPA Method 502/524 High Conc VOC Mix #1 Price on request 3353.8-K-ME 2,4-D,1000 µg/mL,MeOH,1mL, Price on request