ASTM-E2677 is a relatively new standard (approved 2014) for the limits of detection (LOD) in explosive trace detectors (ETD). A unique feature of this standard is that it comes with a web- based calculator (https://www-s.nist.gov/loda/index.html
) on a NIST server for performing the limits of detection computations. This talk focuses on the web-based implementation. The history and discussion of this LOD standard and its potential application to environmental applications, will be given in another presentation.