Spiking Standard #2 Back Catalog number: 53070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66138 2,2’,3,4,4’,5’-Hexachlorobiphenyl (138) Price on request 673010 Prednisolone, 250mg Price on request 676476 D4-Furan, 250mg Price on request