As used in industry standards, the size of a particle suspended in water as determined by its smallest dimension, usually expressed in microns.
The maximum linear dimension of a particle as observed with an optical microscope or the equivalent diameter of a particle detected by an instrument. The equivalent diameter is the diameter of a reference sphere having known properties and producing the same response in the sensing instrument as the particle being measured.
the diameter, in millimeters, of suspended sediment or bed material. Particle-size classifications are: [1] clay: 0.00024-0.004 millimeters (mm); [2] silt: 0.004-0.062 mm; [3] sand: 0.062-2.0 mm; and [4] gravel: 2.0-64.0 mm.
in dealing with SEDIMENTS and sedimentary ROCKS it is necessary that precise dimensions should be applied to such terms as CLAY, SAND, PEBBLE, etc. Numerous scales have been suggested, but in this work, the Wentworth-Udden scale is used, as it is widely accepted as an international standard. In the table which follows, particle size ranges are shown, but within most groups further subdivision is possible; for example, SAND may be described as very fine, medium, coarse, very coarse, etc. Particle size is normally determined by hand measurement of PEBBLES, COBBLES, and BOULDERS; sieving of GRAVEL, SAND, and SILT; and ELUTRIATION of SILT and CLAY. PARTICLE SIZE RANGES:256 mm: BOULDER 64 - 256 mm: COBBLE 4 - 64 mm: PEBBLE 2 - 4 mm 'Granule': GRAVEL 1/16 - 2 mm: SAND 1/256 - 1/16 mm: SILT1/256 mm: CLAY
The size of a piece of fuel, often expressed in terms of size classes.
A measure of dust size, expressed in microns or per cent passing through a standard mesh screen. PASS - A confined passageway, containing heating surface, through which a fluid flows in essentially one direction.
Size of pigments in paint measured in mils or microns.
The sizes of a particle, determined by the smallest dimension, for instance a diameter. It is usually expressed in micron measurements.
In an emulsion it is the actual size of the suspended droplets. Typically, the smaller the particle size the clearer the emulsion.
Particle size: The average diameter of a given powder or grit granule
Average diameter of powder particles measured in mesh size or microns.
The average cross section of the solid graphite particles in a graphite system. The carbonaceous material from which the graphite is produced and the method of manufacturing determine the particle size. Also referred to as grain size.
The size of the paint particle in a dispersion.
The average diameter of an object having irregular boundaries, which can be determined various test methods.
The diameter (in millimeters) of a soil or sand particle, usually measured by sedimentation or sieving methods.
Particle size refers to the size of the individual particles that comprise a dry solid material, usually expressed in "mesh" sizes, sieve analysis or in some other dimensional form.
The average particle size of the packing in an LC column.
Expressed as the apparent maximum linear dimension or diameter of the particle, usually in microns. Go to top
The controlling lineal dimension of an individual particle as determined by analysis with sieves or other suitable means.
The controlling linear dimension of an individual particle, as determined by analysis with screens or other instruments.
A lineal dimension of particles or aggregates. The particle size can be measured by Low Angle Laser Light Scattering (LALLS) method for powders dispersed in suspensions as well as dry powder specimens.
As used in water industry standards, this term refers to the size, expressed in microns, of a particle suspended in water as determined by the smallest dimension.
Particle size, also called grain size, refers to the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials. This is different from the crystallite size, which is the size of a single crystal inside the particles or grains.
