Hi guys, I would like to know if any of you knows a method to determine the time it takes for a given substance to decompose. I would really like to perform such experiment, but I was not able to find anything, and I am sure this method exists, as everyone has already seen a table like this one: http://www.qldlitter.com/pdfs/wastea3.pdf . I would need to perform the experiment for Alimunium, wood and iron. It would already help if you could tell me if I am using the right terminology (degradation/decomposition) or the name of this field of study, as in this way I could refine my search. Thank you in advance!