EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 97738 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2355.72-100-ME Tetraoctadecylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 63462-99-7 Price on request 2029.12-50-NN Dibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 684697 Altretamine, 100mg Price on request