Total Residual Free Chlorine (Cl)

Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml

GC-IRMS Standards ((C25 (?13C: -28.21); C30 (?13C: -28.60); C36 (?13C: -26.15); C40 (?13C: -27.05)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no.

ICP Mix