EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680885 Calflo E, 250g Price on request 2661.12-100-IOX10 Arochlor 1232, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11141-16-5 Price on request 59162 QC-21 Price on request