EPA Method 8081A Pesticide Standard B Back Catalog number: 92790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672971 Sulfacetamide, 250mg Price on request 72724 Heptaldehyde, 1000µg/ml in Acetone, 1ml Price on request 73209 4-Methoxyphenol Price on request