EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 14030-100CY5 PAH - Mix 6, 100µg/ml in Cyclohexane, 5ml Price on request 11420.27-K-ME Verapamil,1000 µg/mL,MeOH,1mL, Price on request 70362 N,N-Dimethylformamide Price on request