EPA Method 8020B Analytes Mix #1 Back Catalog number: 80203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59338 pH 10.0 Standard @ 25°C Price on request C14465200 2-Isopropylthioxantone, certified, 0.1g Price on request DF-2368-S 2,3,6,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request