Reference number
ISO 18852:2005
© ISO 2024
ISO 18852:2005
Rubber compounding ingredients — Determination of multipoint nitrogen surface area (NSA) and statistical thickness surface area (STSA)
Edition 1
2005-05
Retirada
Retirada (Edición 1, 2005)

Resumen

ISO 18852:2005 specifies a method for the determination of the nitrogen surface area (NSA) of carbon blacks and other rubber compounding ingredients, like silicas and zinc oxides, based on the Brunauer, Emmett and Teller (BET) theory of gas adsorption using a multipoint determination. This test method specifies the sample preparation and treatment, instrument calibration, required accuracy and precision of the experimental data, and calculation of the surface area results from the data obtained. Also given is a procedure for calculating the statistical thickness surface area (STSA), otherwise known as the external surface area.

The test method specified uses an automatic volumetric static-vacuum apparatus, the surface area being calculated using the BET theory based on monolayer measurements.

Informaciones generales

  • Estado
     : Retirada
    Fecha de publicación
     : 2005-05
    Etapa
    : Retirada de la Norma Internacional [95.99]
  • Edición
     : 1
    Número de páginas
     : 11
  • Comité Técnico :
    ISO/TC 45/SC 3
    ICS :
    83.040.20 
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