EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680787 Carbofuran-3-keto, 10.0 µg/ml, Acetonitrile, 10m Price on request 79535 Ethyl caproate Price on request 70562 Bromophos methyl Price on request