EPA Method 552.2 - Surrogate Standard Back Catalog number: 30109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DTBP Tri-n-butyl phosphate-d27, 1.2ml x 50ug/ml, toluene Price on request 2270.3-2K-MX Acetone, 2000µg/mL, Solvent-9:1Methanol/water or Methanol, Unit 1mL, # of units-1, Cas.no. 67-64-1 Price on request 8397.9-50-ME trans-Pinic acid,50 µg/mL,MeOH,1mL, Price on request