Standards is a great reference source for any project, especially those that involve designing and prototyping. Here's how standards can help you:
It is common for many major standards such as ISO, IEC and EN to be adopted by other standards. The standard number usually gives an indication of adoption where standards are equivalent.
Example: UNI EN ISO 9001
The three standards, ISO 9001, EN ISO 9001 and UNI EN ISO 9001 are identical other than the reference numbers.
Question: The library does not have Italian Standards. What if you need UNI EN ISO 9001?
NUS Libraries has a good set of British Standards through our subscription to British Standards Online (BSOL). Since the UK has adopted ISO 9001, you can search for this version (i.e. BS EN ISO 9001) in BSOL. The content is identical to UNI EN ISO 9001.
Note: The above principle does not apply to Eurocodes and National Annexes as there are likely to be differences between countries for these.