EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 60004 Acid Extractables Price on request 96148 Semi-Volatile Mix Price on request 1530.13-K-IOX5 Fluorene-d10, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 81103-79-9 Price on request