EPA Method 8260B Surrogate Standard Back Catalog number: 23002 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72148 Diltiazem Price on request 0708.10-K-IO 1,2-Dihydronaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 447-53-0 Price on request 11662.10-50-IO 1,8-Dichloronaphthalene,50 µg/mL,isooctane,1mL, Price on request