EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94916 Haloacetic Acid Methyl Esters Price on request 8643.12-50-NN 1,2,3-Trichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request S-4056-K-MXX5 Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5 Price on request