In sandwich ELISAs, no cross-reactivity with recombinant human (rh) IL-3, rhGM-CSF, recombinant mouse (rm) IL-5, rhIL-5, rmIL-3, or rmGM-CSF is observed. Reconstitute at 0.5 mg/mL in sterile PBS. Endoxin level is <0.10 EU per 1 μg of the antibody by the