EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59230 General Minerals Mix Price on request 677508 Chlorobenzilate, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 71287 1,2-Dimethylnaphthalene Price on request