EPA Method 8260B Surrogate Standard Back Catalog number: 23002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2372.7-K-IO Guaiacol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 90-05-1 Price on request 1685.10-K-IO 2-n-Hexylthiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 18794-77-9 Price on request 11019.30-5UG 17?,18?(H),21ß(H),17-methyl-28-norhopane,neat,neat,ca. 5 µg, Price on request