The ISO standard value can be obtained by particle counter is the most commonly used method. The ISO4406 cleanliness standard, developed by the International Organization for Standardization, specifies the cleanliness level of the fluid, and the ISO code includes a total of three numbers for each relevant range. The first number range is the number of particles greater than 2μm. The second number range is the number of particles greater than or equal to 5μm. The third number range is the number of particles greater than or equal to 15μm. When the ISO cleanliness class code is expressed as only two sets of numbers, it refers to the number of particles ≥5μm and ≥ 15μm.
previous:Filtration accuracy
next:NO |
Return list |