has clause Derivatives not allowed Number of installations unrestricted Usage unrestricted Attribution required Vendor-specific License UCUM Terms of Use The UCUM Terms of Use is a vendor-specific license which allows the resource it references to be used for commercial or non-commercial purposes without restriction of any kind, provided that appropriate attribution is given. However, the resource itself may not be modified in any way. Users may make and distribute an unlimited number of copies of the Licensed Materials. Each copy thereof must include the Copyright Notice and License. The Unified Code for Units of Measure Terms of Use http://unitsofmeasure.org/trac/wiki/TermsOfUse, accessed 13 July 2016 Allyson Lister Distribution with notices