WS Disinfection By-Products - Cal Check 1

1-Methoxy-2-propanol,1000 µg/mL,MeOH,1mL,

Hexadecamethylcyclooctasiloxan, 100µg/ml in Acetone, 5ml

D4-2,4,5-T, 100 µg/ml, Acetone, 1ml