EPA Method 8141 Standard Back Catalog number: 92834 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended ZS22102106HP Chloroparaffin C10-C13Mix 6 in n-Heptane, 3 x 1ml Price on request 92196 Pesticide Mix B + Surrogates Price on request 673511 Chlorpyrifos-methyl, 10.0 µg/ml, Ethyl acetate, Price on request