"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended S-4503-100-25LW Phosphorous Standards Phosphorus in Light White Mineral Oil, 20Cst Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request 1053.7-1ML m-Thiocresol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 108-40-7 Price on request 82483 EPA Method 8325 Surrogate Standard Price on request