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ASTM F312 PDF
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Standard Test Methods for Microscopical Sizing and Counting Particles from Aerospace Fluids on Membrane Filters
| Published by | Publication Date | Number of Pages |
| ASTM | 10/01/2016 | 4 |
ASTM F312 – Standard Test Methods forMicroscopical Sizing and Counting Particles from AerospaceFluids on Membrane Filters
1.1 These test methods cover the determination of the size distribution and quantity of particulate matter contamination from aerospace fluids isolated on a membrane filter. The microscopical techniques described may also be applied to other properly prepared samples of small particles. Two test methods are described for sizing particles as follows:
1.1.1 Test Method A-Particle sizes are measured as the diameter of a circle whose area is equal to the projected area of the particle.
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