Wayne C. Gramlich wrote:

All:

Please note that the IGES 5.3 specification is not freely
available. If you want a copy of the IGES 5.3 specification,
be prepared to shell out $425 (US) for a downloadable PDF
and $495 (US) for a CD-ROM. Go to:

http://www.nist.gov/iges/

click on "Current Version" in the lefthand frame and
finally click on "US Product Data Assoiciation/IGES Catalog"
to get the price list.


Well of course we're talking about industrial standards here that
everybody understands not some make 'it-up-as-you-go-along' hackery.