We have recently opened a cleanroom (class 8) and are now considering having it certified. My question is whether this certification can only be carried out by a dAKKS accredited laboratory. We are currently working with a non-accredited laboratory. Would such a certification be permissible?

We have recently opened a cleanroom (class 8) and are now considering having it certified. My question is whether this certification can only be carried out by a dAKKS accredited laboratory. We are currently working with a non-accredited laboratory. Would such a certification be permissible? 

No, an inspection of the cleanroom class and filter test can also be carried out by a non-accredited company.