Chemical Oxygen Demand, 10000mg O2/L, 100ml

ISO 15680 Stock Calibration Standard Solution 4 22 Analytes to be used with Internal standard S1, each 2000µg /mL in methanol; unit: 1x5mL 2155.9 Isopropylbenzene [98-82-8] 2157.6Monobromobenzene [106-86-1] 3957.2 1,1,2,2-Tetrabromoethane [79-27-6]

EPA 1638Mix A

U-(13C20)-Cyclopiazonic acid,10 µg/mL,acetonitrile,1.2mL