Reference number
ISO 787-23:1979
International Standard
ISO 787-23:1979
General methods of test for pigments and extenders — Part 23: Determination of density (using a centrifuge to remove entrained air)
Edition 1
1979-12
Preview
ISO 787-23:1979
5102
No disponible en español
Publicado (Edición 1, 1979)
Esta publicación se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 787-23:1979

ISO 787-23:1979
5102
Idioma
Formato
CHF 42
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Resumen

Displacement liquids of known density should be selected in which the material to be tested is insoluble, and which has good wetting properties and a low evaporation rate under vacuum. High-boiling aromatic or aliphatic hydrocarbons are suitable. The temperature, t, at which the determination is carried out affects the density of the displacement liquid; each weighing should be made at a constant temperature. The principle consists in weighing into a tared tube a quantity of a dried sample, wetting it with displacement liquid, centrifuging until the occluded air is removed and calculation of the density from the difference of masses.

Informaciones generales

  •  : Publicado
     : 1979-12
    : Norma Internacional confirmada [90.93]
  •  : 1
     : 2
  • ISO/TC 256
    87.060.10 
  • RSS actualizaciones

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