Calulation of MACO


in the calculation of MACO, the area is very important but my question is:

the area is inversely proportional to MACO?
Someone can assist? please.

Dear Friend…
After a long gap, I came back to my favorite site.
MACO is generally calculate using dosage quantity, batch size and safety factor. While calculating swab limit, MACO can be divided by surface area. So, swab limit shall be always inversely proportional to surface area. But, if you are collecting rinse sample, the surface area is not required but you need to consider rinse volume.


Dear Ramya raj,

Can you please send any protocol for a product cleaning validation procedure and validation in a equipment train.

Bujji Reddy Kanchi.

Than you Raju.

In my case the calculation is with swab