Mass-Labelled PCB Solution, 1.2ml x 20ng/ml, nonane Back Catalog number: PCB-IS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 21013 EPA Method 8260 Internal Standard - Revised Price on request 11752.12-100-IO 2,3,3',4,5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 59991 IC Anions Mix Price on request