EPA Method 525 Spike B Back Catalog number: 92313 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8814.12-100-IO 2',3,5-Trichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-68-5 Price on request 50682 ICP-OES EPA 200.7 Calibration Standard Price on request 8393.6-10MG Levoglucosan, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 498-07-7 Price on request