EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0707.14-500-IO 1,4,6,7-Tetramethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 13764-18-6 Price on request 56351 Antimony (Sb) Price on request 673564 Endosulfan-sulfate, 100 µg/ml, Ethyl acetate, 5m Price on request