ISO 4406 Particle Count Chart
   MRT Laboratories Technical Information Page
 
 

 

ISO 4406 Rating Expressed as X / X / X
Example:

ISO 4406 Rating --  16/13/11

    16 = range of number of particles > 4

    13 = range of number of particles > 6

    11 = range of number of particles > 14

 

 

 

 

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