EPA Method 551Mix “A” Back Catalog number: 30194 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676845 Xylazine hydrochloride, 100mg Price on request MDF-123789 1,2,3,7,8,9-Hexachloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 30211 1,2-Dichlorobenzene Price on request