Hello can we separate FFP , CRYO or CSP in platelets bags or this will affect product quality ?

I don't understand this question?  What do you mean by platelet bag? 

storage bags after separation from whole blood

What does the manufacturer of the WB bag state in their package insert? 

As far as the specific membrane properties of each bag, I can't name specific biomedical engineering reasons. However, they are all a different size and texture for a reason. Plt bags allow optimal exchange for platelets when they're lying flat on their rotators; it comes down to clumping/aggregation cascade...  But I reiterate the above comments and I would look at the manuf. directions

I think the place to start is with the manufacturer.  Look at the information provided with the product.  If that does not answer your question, contact the company directly.

12 hours ago, Ward_X said:

As far as the specific membrane properties of each bag, I can't name specific biomedical engineering reasons. However, they are all a different size and texture for a reason. Plt bags allow optimal exchange for platelets when they're lying flat on their rotators; it comes down to clumping/aggregation cascade...  But I reiterate the above comments and I would look at the manuf. directions

Thanks