Whats the difference between SS solids? (The numbers)

Originally Posted by BRASSCATCHER

If you go to www.isri.org you can print out a scrap specifications circular. It's a guideline for all ferrous,nonferrous,glass,paper,plastic,electronic, and tire scrap. It's one of the first things I read through when I started scrapping and gives a good description of all the metals. Also google spark test and read through a few things. There are good online descriptions of what to look for when spark testing metals. One actually had great pictures of spark tests and the different sparks that are thrown by different metals. I will try to find the link.

The ISRI guide should be a mandatory read for all scrappers and wannabe's