EPA Method 508 Pesticide Standard Back Catalog number: 92949 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679449 Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml Price on request 57657-1000ME5 Terpenes - Mix 4, 1000μg/ml in Methanol, 5ml Price on request O148500 Ochratoxin B, 5mg Price on request