Calibration Standard Mix 4 Back Catalog number: 52013A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91703 EPA Method 502.2 Internal Standard Price on request BDE-047S 2,2',4,4'-Tetrabromodiphenyl ether,50µg/ml IO, 1ml Price on request C16986103 Sudan 3, certified, 0.25g Price on request