PCB No. 189, 10µg/ml in Isooctane, 10ml Back Catalog number: L20018900IO Availability: In the manufacturer's stock Price on request - + Recommended 59179 TOC Calibration Standard (C) Price on request XA17320100AC Terbutryn D5, 100µg/ml in Acetone, 1ml Price on request ES-4087 EPA 16 PAH Cocktail (13C,99%), 5µg/ml Nonane,1,2ml Price on request