Perfluorooctane sulfonic acid, 100 ng/µl, 1ml Back Catalog number: XA15987120ME Availability: In the manufacturer's stock Price on request - + Recommended M10030B 12.880 µS/cm conductivity solution (box of 25x20mL sachet) Price on request 90123R Aroclor 1016 Price on request 95227 EPA Method 525 Internals & Surrogates Price on request