EPA Method 8330 Analytes Back Catalog number: 93466 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10900.17-K-DS Promethazine hydrochloride,1000 µg base/mL,DMSO,1mL Price on request 93199 EPA Method 526 Standard Price on request 3355.11-100-CY 2,4-DB methyl ester Price on request