TUN (product standard)
TUN is a Danish product standard numbering system identifying building materials, managed by Danish Timber & Building Merchants' Trade Organization (Trælasthandlerunionen). Currently more than 30,000 products are identified. TUN numbers are assigned to suppliers identifying products and therefore a product with several suppliers can have more than one TUN number. TUN numbers are currently being mapped against UNSPSC.
- "Rørforeningen – Abuse of dominant position (discrimination)". Danish Competition Authority. 2005. http://www.konkurrencestyrelsen.dk/?id=21424.
- "Implementation of Digital Construction". Danish Enterprise and Construction Authority. 2003. http://www.ebst.dk/download/pdf/dconstruction.pdf.
- "Mulighed for eksport af UNSPSC koder i ByggeBasen". TUN. December 14, 2009. http://www.byggebasen.dk/default.aspx?side=3&nyhed=16.