EPA Method 552.2 - Surrogate Standard Back Catalog number: 30108 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9221.8-100MG 1-(2-Hydroxyphenyl)ethanone (2-Hydroxyacetophenone), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 118-93-4 Price on request 9813.2-K-ME Dimethylnitramine, 1000µg/mL, Solvent-methanol, Unit 1.1mL, # of units-1, Cas.no. 4164-28-7 Price on request 54257 Phosphate (PO4-3) as P Price on request