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  • BSI
    BS 3406-4:1963 Methods for determination of particle size distribution - Optical microscope method
    Edition: 1984
    $538.63
    / user per year

Description of BS 3406-4:1963 1984



In fractions of powders which pass 75 micron British Standard test sieve. Sample dispersed, placed on glass slide and particles viewed through microscope by transmitted light. Areas of magnified images of particles compared with areas of reference circles of known sizes inscribed on graticule and simultaneously visible (see BS 3625). Relative numbers of particles in each of series of size classes determined. These numbers, expressed as percentages, constitute size distribution by number. From relative numbers in size classes, size distribution can be calculated by weight if it is assumed that particles of all sizes have same shape and density.

Standard NumberBS 3406-4:1963
TitleMethods for determination of particle size distribution - Optical microscope method
StatusWithdrawn
Publication Date1984-04-01
Withdrawn Date1993-01-15
Replaced ByBS 3406-4:1993
DescriptorsSpecimen preparation, Particle size measurement, Lenses, Statistics, Errors, Graticules, Particle size distribution, Confidence limits, Sampling equipment, Standard deviation, Statistical distribution, Dimensions, Optical measurement, Microscopes, Test equipment, Size classification, Particulate materials, Microscopic analysis, Adjustment
ICS19.120 Particle size analysis. Sieving
CommitteeLBI/37
ISBN0 580 03458 5
PublisherBSI
Pages72

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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