Method 504.1MDL Mix Back Catalog number: 94020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended NK-ST-B2 Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 55038 WP & DMRQA Phenolics (Total ) 4AAP Price on request 71198 Fluoranthene-d10, 1000µg/ml in Methylen Chloride, 1ml Price on request