EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71167 Methyl-4-Chlorophenoxyacetate Price on request 9533.12-100-NN Dieldrin-13C12,100 µg/mL,n-nonane,1mL Price on request 678006 Isocarbophos, 100 µg/ml, Cyclohexane, 1ml Price on request