Fm26 Iso -
Applies to all entities, departments, and projects under the financial management framework. Covers:
This is the gold standard. A filter element is challenged with ISO MTD (Medium Test Dust) injected upstream. Downstream particle counts determine the Beta ratio. For FM26, the test is run to terminal pressure drop, and the average Beta at 26µm(c) must be ≥200. fm26 iso
Why is the number 26 so prevalent? Hydraulic and lubrication system engineers have determined that the "critical gap" in most servo-valves and journal bearings is approximately 26 microns. Particles larger than this cause abrasive wear, leading to catastrophic failure. Consequently, FM26 ISO certification is mandatory in: Applies to all entities, departments, and projects under
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