EPA Method 6020 / 6020A - Mix B Back Catalog number: 53331 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2625.34-10UG 17 alpha(H),21ß(H)-(22RS)-Tetrakishomohopane , neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 67069-13-0 Price on request S-4592-20-DCX10 Custom alkyl-PAHs and alkyl-benzenes Mixture 20µg/mL each in dichloromethane 2155.9 Isopropylbenzene 1298.9 n-Propylbenzene 0722.12 1,3-Dimethylnaphthalene 0724.12 1,5-Dimethylnaphthalene 0725.12 1,6-Dimethylnaphthalene 0731.12 2,7-Dimethylnaphthale Price on request 675984 Diquat and Paraquat Mix 1, 1000 µg/ml, Water, 1m Price on request