WP Non-Filterable Residue Back Catalog number: 54134 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0907.12-500-IO Diphenylsulfide, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 139-66-2 Price on request DFP-IS-B10 Mass-Labelled PCDD & PCB Internal Standard Solution, 1.2ml, nonane Price on request 92738 Aroclor 1260 Price on request