EPA Method 515 Herbicide Acids Back Catalog number: 93924 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1392.30-100-IO 3 alpha(H),17ß(H),21ß(H)-3-Hydroxyhopane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 28196-47-6 Price on request 674578 Hexachlorophene, 250mg Price on request 95323 Volatile Standard Price on request