Boomer
Well-known member
Barrier
Usually I get tricky Send it American Norit the largest GAC manufacture in the world. BS them you do not have a clue what this stuff is and ask, IS it bitum, lignite, peat is, regenerated, is it crap, what is the Iodine# Molasses # ????? Someone says this stuff has 1500m^ 2 TSA and you think it is BS. Do yon have a GAC like this stuff ? Is it your GAC ?
Usually you just send it and they test for free, at least they use to for me. I can't test anything anymore. I gave all my stuff to Randy Holmes-Farley. There is no one in this hobby currently that can properly test GAC for the usually listed parameters. I have the methods book for doing it but you need lots of lab equipment.
Try the PO4 glass trick with some and see what you get. Find someone with a micrometer and see what diameter it is. If it is 0.8 mm it is American Norit "Row" GAC. If it is 1.5 mm it is more than likely that stuff on the link I gave. Take some RO/DI water and adjust the pH to 7 and dump some in, don't rinse it first and see if the pH changes up or down
http://www.norit-americas.com/default.cfm
Usually I get tricky Send it American Norit the largest GAC manufacture in the world. BS them you do not have a clue what this stuff is and ask, IS it bitum, lignite, peat is, regenerated, is it crap, what is the Iodine# Molasses # ????? Someone says this stuff has 1500m^ 2 TSA and you think it is BS. Do yon have a GAC like this stuff ? Is it your GAC ?
Usually you just send it and they test for free, at least they use to for me. I can't test anything anymore. I gave all my stuff to Randy Holmes-Farley. There is no one in this hobby currently that can properly test GAC for the usually listed parameters. I have the methods book for doing it but you need lots of lab equipment.
Try the PO4 glass trick with some and see what you get. Find someone with a micrometer and see what diameter it is. If it is 0.8 mm it is American Norit "Row" GAC. If it is 1.5 mm it is more than likely that stuff on the link I gave. Take some RO/DI water and adjust the pH to 7 and dump some in, don't rinse it first and see if the pH changes up or down
http://www.norit-americas.com/default.cfm