Recertification-Taking in your used sieves and recertifying so that you are sure your sieves in use still conform to A.S.T.M. specs. Recertification sieves are supplied with our Certificate of inspection and conform to ASTM-E11, Section 7.2.2
If at any point your sieve being recalibrated fails, you will not be charged for the recertification of that sieve. We will contact you and go over your options that will best suite your needs. All of the procedures will be performed by highly skilled individuals using state of the art Nikon Comparators.