VeriSpec™ Organic Standards 2000 ppm: 2-Bromo-1-chloropropane, Fluorobenzene in Methanol. 2000 ppm: 2-Bromo-1-chloropropane, 1-Chloro-2-fluorobenzene in Methanol ASTM D5580 ISO 17025/Guide 34 24 Month Shelf Life Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility