Paraben-Mix 1, 100 µg/ml, Methanol, 5ml

p-n-Nonylphenol Monoethoxylate (ring-13C6), 100µg/ml in Nonane, 1,2ml

1,1,1,2-Tetrachloroethane, 1000 µg/ml, Methanol,

Total Cyanide (CN), 1000µg/ml in in Water / Tr. NaOH, 500ml