EPA Method 8315 Calibration Mix #1 Back Catalog number: 83509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79500 Isopropyl ether Price on request S-4058 Dibenzothiophene in Xylene S-4058 1000 µg/mL, 5x1mL ampoules Please request for diluted samples in the range 1 to 1000mg/mL. Price on request 10890.12-100-T 3-Nitrobiphenyl,100 µg/mL,toluene,1mL, Price on request