Expandable graphite the big difference, page-16

Hi Matsax, thanks for the article, Mainholm provided me a link some time ago, I have recently been going thru it as another company that I also hold have recently released results on their testing for expandable graphite and I was trying to compare them to TON announcement. Unfortunately the terminology are different, which forced me to delve into the depths of this article. So my other company reported "Jumbo (+50 mesh) 490ml/g and 420ml/g" and it looks to me as from the link that 1gm is close enough to 1ml so they just use a 1:1 ratio, therefore we get 490ml from a ml, therefore in TON's terminology we can say my other companies Graphite expanded up to 490 times, where as TON announcement was up to 1000 times, is that an accurate comparison? Hope I am not asking the obvious, but I prefer to ask a dumb question rather than be in any doubt.
Thx