This purified antibody has been tested for use in neutralizations, ELISA and western blotting. Reactivity is also expected in radioimmunoassay and immunohistochemistry. The endotoxin content is estimated to be <10 pg/ul by the LAL method. By western blot a band approximately 14.3 kDa in size corresponding to mouse GM-CSF protein is expected in the appropriate cell lysate or extract. Specific conditions for reactivity should be optimized by the end user.