ASTM Method D4059-00 is used for determining PCB concentrations in various types of transformer oil using GC-ECD detection. The analyst must dilute transformer oil samples in a solvent prior to injection. The oil in the sample has been shown to quench the ECD. Calibration mixtures of PCBs in transformer oil must be prepared and diluted identically to eliminate the detector quenching bias resulting when samples are analyzed.
We prepare these solutions in a mineral oilbased transformer oil (Exxon Univolt N-61), which has been tested to ensure it is PCB-free.
Acid Surrogate Mix (4/89 SOW), 2000 µg/mL, Methanol, 1 mL/ampul, 25-pk.
Base Neutral Matrix Spike Mix, 1000 µg/mL, Methanol, 1 mL/ampul
Acid Matrix Spike Mix, 7500 µg/mL, Methanol, 5 mL/ampul 

