EPA Method 525.2Mix #2 Back Catalog number: 92208 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A601797 4-Aminobiphenyl-d9, 10mg Price on request DF-IS-A200 Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 200ng/ml , nonane Price on request 57181 Thallium (Tl) Price on request