EPA 8240B Calibration Standard Back Catalog number: 98430 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679076 Methoprene, 100 µg/ml, Acetonitrile, 1ml Price on request 11207.12-10MG 1H,1H,2H,2H-Perfluoro-n-octyl methacrylate-d5,neat,neat,10mg, Price on request 38201 TX1005 TPH - Water Low Level Price on request