EPA Method 8315 Calibration Mix #1 Back Catalog number: 83509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended H943555 rac 3-Hydroxyisobutyric Acid, 1mg Price on request 12061.14-100-NN Phenanthrene-13C6,100 µg/mL,n-nonane,1mL Price on request 3957.2-1ML 1,1,2,2-Tetrabromoethane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 79-27-6 Price on request