WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml Back Catalog number: P48-W-ES Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 98974 Di-n-butyl sulfide as S Price on request 8952.21-100-T 3-Chloro-1,2-propandiol-1-monooleate Price on request 93104 Aroclor 1242 Price on request