EPA Method 630/630.1 Stock Solution #2 Back Catalog number: 40025 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54013 Glycolic acid (C2H4O3) Price on request DF-LCS-B200 Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml , nonane Price on request 10379.25-100-AN d-Norpropoxyphene maleate,100 µg/mL,base aceton,1mL Price on request