EPA Method 8260B Purgeable Internal Standard Back Catalog number: 28013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676957 Perfluorooctadecanoic acid, 50mg Price on request 684466 Cyclobenzaprine hydrochloride, 10mg Price on request 674787 PSA-Mix 4 Price on request