I've been on there for the last couple of hours, don't bother with the files named as ASTM 2015, they are older, my files here are the latest.
Some of the collections are good, esp. the NACE one and the AWS A Series 2015 although neither contain the latest. The AWS STANDARD file is old. The AS NZS file is recent. The DNV Full 2015 has a good set of files. The JIS file is from 2013. The SAE file is from 2013 and 2014. The SSPC file is from 2000 and 2003.

I have not been able to download the ISO, DIN and BS files yet, they are huge.