Filter bags safe?

[Junmity]

Hi,

I have about one thousand of these filterbags....

they are a 3M 5 micron polypropylene filters.

can be seen here.

http://www.esgfiltration.com/pdfs/no...FilterBags.pdf

just wondering if these are safe to use in my sump?

if so, i have piles that i'd be willing to part with