I notice in eml-attribute.xsd that the default value for standardUnit is "undefined". If "undefined" gets scrapped, we have to remember to change this. Tim. -- Tim Bergsma LTER Information Manager W.K. Kellogg Biological Station Michigan State University Hickory Corners, MI 49060 616/671-2337 tbergsma at kbs.msu.edu http://lter.kbs.msu.edu