EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12060.22-100-ME Canrenone,100 µg/mL,MeOH,1mL Price on request 3117.10-50-IO 2,3-Dibromonaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 13214-70-5 Price on request 683263 Equilin, 50mg Price on request