Тезис

Specifies a method for determining the mass distribution of the particle sizes of diameter 50 m and more. The procedure based on mechanical sieving of the crude sample, dried at 100 °C, through woven wire sieves in an atmosphere of relative humidity not more than 50 %. Weighing of each of the separate fractions. Verification, by means of a lens or microscope, of the degree of obstruction of the sieve meshes (maximum permitted obstruction: 1 %). Has also been approved by the IUPAC.


Общая информация 

  • Текущий статус
     : Отозвано
    Дата публикации
     : 1974-02
  • Версия
     : 1
  • Технический комитет
     : ISO/TC 226 Materials for the production of primary aluminium
  • ICS
     :
    71.100.10 Materials for aluminium production

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  6. ISO 2926:1974