EPA Method 8260B Surrogate Standard Back Catalog number: 23112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684158 Ergosterol, 100mg Price on request 678450 Pendimethalin, 100 µg/ml, Acetonitrile, 5ml Price on request 9948.4-100-AN N-Nitrosodiethanolamine-d8, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1173019-53-8 Price on request