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BS 3406-4:1963

Methods for determination of particle size distribution - Optical microscope method

Standard Details

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.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: BS 3406-4:1963
Document Year: 1963
Pages: 72
  • Section Volume:
  • GBM09 Metrology (GMB09)
  • ICS:
  • 19.120 Particle size analysis. Sieving

Life Cycle

Confirmed

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WITHDRAWN
BS 3406-4:1963
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