EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70147 1,1-Dichloropropene Price on request 11802.12-50-NN Triclosan, purified 99%,50 µg/mL,n-nonane,1mL, Price on request 10109.30-10MG Tetraphenylrecorcinol bis(diphenylphosphate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 57583-54-7 Price on request