EPA Method 624 Internal / Surrogate Standard

delta-9-Tetrahydrocannabinolic acid A, 10.0 µg/ml,

BTEX Mixture 1 6 Analytes, each 200 µg/mL in methanol; units:1x1 mL, 1x5mL 1300.6 Benzene [71-43-2] 1267.8 o-Xylene [95-47-6] 1264.7 Toluene [108-88-2] 1266.8m-Xylene [108-38-3] 1268.8 Ethylbenzene [100-4

EPTC, 100 µg/ml, Acetonitrile, 1ml