EPA Method 515 Herbicide Acids Back Catalog number: 93924 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50160 Multi-Element Internal Standard Price on request 1747.13-K-IO 3-n-Nonylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 65016-63-9 Price on request TBCT Tetrabromo-o-chlorotoluene, 1.2ml x 50ug/ml, toluene Price on request