EPA Method 8270 PAH Standard Back Catalog number: 97742 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended PFOPA Perfluorooctylphosphonic acid, 1.2ml x 50ug/ml, methanol Price on request 67017 beta-Lactam Antibiotics Price on request 58133 Arsenic (As) Price on request