Here is the repsonce from BRS.
Hey there,
Basically the numbers people are going to be interested in are the hardness, iodine number, methylene blue number, and whether its pH neutral.* Generally high is better in most tests as it indicates the carbons ability to remove a particular sized particle (exception being hardness which mostly has to do with dust).* I am not familiar with the carbon you listed below but based on its numbers it *is a lot better than your average carbon but not as good as the ROX. The ROX carbon is a minimum 1000mg/g compared to the 800-1000 of the jebo.* For the methylene blue test the jebo is 120-150mg/g compared to the ROX which is 24 g/100g.* Its really important to notice the difference in units on this one though.* The ROX is 24g per 100g, compared to the jebo which is measured in milligrams/g. I may be a bit rusty on my unit conversions but I believe the ROX equivalent comes to 240mg/g.* The ROX carbon is a carbon made for high purity water filtration and mainly used in the pharmaceutical industry.* This is going to make it significantly better than most carbons which are repurposed from other industries and usually bituminous carbon intended for air filtration.* Hope that helps, if you need the full tech sheet let me know but its mostly the same data you already have.
*
Brandon
Customer Service and Technical Support Manager
Bulk Reef Supply