Being an electrical engineer you will come to some incidence where you have to quote or refer the standards. Standards are very difficult to get because people keep only the popular ones. But on many occasions we have to produce some rare standards. Here you can get it from http://www.beuth.de Here you will find IEEE Standards for download - All IEEE Standards can be downloaded in PDF-format from the Beuth webshop. These doccuments are arranged in a professional manner so that you can download them very fast and easy. Here you also find national and international document collections 54 document collections published by 47 organizations online searchable. Over 135,000 of these documents are downloadable. Search and download standards and other technical rules Dive into the world of technical rules. Unfortunately this service is not free, you have to pay for it. If you know some sites that provide free standards then use comment column to communicate that!