The HIWG have now released HIWG FFXML Price Catalogue v3.0 (December 2007) specifications and schema. This specification matches the previously released HIWG Flat File Price Catalogue v3.0 (September 2005) specifications.
In addition, the updated version of the Hardware Industry Numbering and Bar Coding Guidelines have been released - Version 1.0 December 2007 - incorporating additional information and clarification. These guidelines are now "Australasian" and can be used across both Australia and New Zealand.
These documents can be viewed/downloaded from the free Downloads area.