Human TNFSF15 ELISA development kit contains the key components required for the quantitative measurement of natural and/or recombinant TNFSF15 in a sandwich ELISA format within the range of 62-4,000 pg/mL. Using the ELISA protocol described below, this kit provides sufficient reagents to assay TNFSF15 in approximately 1,000 ELISA plate wells.