AA Standard #1 Back Catalog number: 59227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1723.18-500-IO 2-Methylcyclopenta[l]phenanthrene, 500 µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 121254-39-5 Price on request 2398.8-K-IPX5 3,4-Dimethylphenol-2,5,6-d3-OD, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-5, Cas.no. 19031-58-4 Price on request 31053 EPA Method 552.1 - Haloacetic acid esters Price on request