The Froggy Channel., page-114

It is PG10 (according to the announcements) which has a average lateral size of 10um,






The notified chemical consists of graphene platelets ranging from 4 layers to 15 layers. No single layer (or monolayer) graphene was observed in the size distribution of the notified chemical.

I.e PG20 will have layers upto 15 layers thick,
Nanene has around 10% of its products above 10 layers.