EPA 8240B Calibration Standard Back Catalog number: 98430 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MBP-138 2,2',3,4,4',5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 82484 Method 8430 Calibration Mix Price on request 11494.27-10MG JWH-370,neat,neat,10mg, Price on request