If the University Libraries do not appear to own the standard you need:
Have you checked Google? Some industry standards are available free on the web.
It is sometimes possible to use Interlibrary Loan (ILL) to borrow standards not owned by the UofL.
If you need to purchase the standard directly from the document supplier, you might try using IHS Global Engineering. Be sure to check their website (http://www.global.ihs.com) to find purchase cost and verify your standard is available.