Particle Count Distribution
Standard Test Method for Particle Count Using Automatic Optical Particle Counters, ASTM D6786
A number of interpretations of particle size and particle size distribution analysis have been applied to electrical insulating liquids. The optical method (ASTM D6786) is similar to methods used for lubricating oils and to standard methods for particle count in insulating liquids used overseas. In optical methods, an instrument is used to count and to determine the size of particles in an insulating liquid that block out light.
A number of interpretations of particle size and particle size distribution analysis have been applied to electrical insulating liquids. The optical method (ASTM D6786) is similar to methods used for lubricating oils and to standard methods for particle count in insulating liquids used overseas. In optical methods, an instrument is used to count and to determine the size of particles in an insulating liquid that block out light.