EPA Method 624 Surrogate Standard Back Catalog number: 19112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CFN99642 Rutin, >98%, 20mg Price on request 0473.18-200-T 2,3,6,7-Tetramethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 15254-25-8 Price on request 44P-DDD 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethane, 1.2mL x 100ug/mL, nonane Price on request