EPA Method 8260B Mix #4 Back Catalog number: 82466 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10649.11-100-5AN Chloramphenicol Price on request 98444 Aflatoxin B1 (from Aspergillus flavus) Price on request 53069 Spiking Standard 1 Price on request