Is it compulsory to fine grind the adsorbent for BET Surface Area Analysis? And what is the ideal granular size of the adsorbent required for this?

The adsorbent granules I am using in my adsorption studies are 300 microns in size, and is amorphous in nature. And in this regard, is it necessary to make the sample even finer by grinding it? 

12 September 2017 5,564 3 View