EPA Method 526 Surrogate Standard Back Catalog number: 93187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EDF-8999-4 Method 1613Labelled Compound Stock Solution, in Nonane, 4 x 0,5ml Price on request 72060 Dimethyl phthalate-d4 Price on request 50766 Ammonium hydroxide Solution Price on request