"Standards play a very important part in the engineering world." They supplement the design process by guiding the designer or user to ensure consistent products with safe and reliable operation. Understanding and complying with pertinent standards helps to ensure a successful design, fabrication, and operation of a product.” (from Primer on Engineering Standards by Maan H. Jawad and Owen R. Greulich, ASME Press, 2014).
There are literally thousands of standards and they are usually expensive. It is impossible for the library to try to purchase all or any of them. We have ASTMs and IEEE (see this guide for more info). However, if you run across a standard you really need, contact the engineering librarian.
When you are a working engineer, your company will already have or will acquire standards since they are essential for engineering.