EPA Method 500 Series Internal Std #4 Back Catalog number: 32003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66014 PCB No. 14, 100µg/ml in Isooctane, 1ml Price on request S-4217-10K-ACX5 9377-2 Quality Control Standard of Mineral Oils A+B ,10000µg/mL in acetone (5000µg/mL of each), 5x1ml Price on request 11508.47-100-AN Paclitaxel,100 µg/mL,acetonitrile,1mL, Price on request