EPA Method 551 “Mix B” Back Catalog number: 30395 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1937.0-1MLX10 Boron trifluoride, 12% in methanol, neat, Solvent-neat, Unit 1mL, # of units-10, Cas.no. 373-57-9 Price on request 8538.18 Diisopentyl phthalate: Se 8425.18, , Solvent-, Unit , # of units-, Cas.no. 605-50-5 Price on request 79645 2,3,4,6-Tetrachloroanisole Price on request