EPA Method 6020/6020A - Mix B Back Catalog number: 52331 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9060.7-K-IP Tetrachloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2539-17-5 Price on request 90799 Phthalic anhydride Price on request 680884 Metribuzin-desamino-desmethyl, 10mg Price on request