ISO 9277:2022
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ISO 9277:2022
71014
Indisponible en français

This document specifies the determination of the overall specific external and internal surface area of either disperse (e.g. nano-powders) or porous, solids by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller method,[1] based on the 2015 International Union for Pure and Applied Chemistry (IUPAC) recommendations[3].

NOTE       For solids exhibiting a chemically heterogeneous surface, for example, metal-carrying catalyst, the BET method gives the overall surface area, whereas the metallic portion of the surface area can be measured by chemisorption methods.


Informations générales 

  •  : Publiée
     : 2022-11
  •  : 3
  •  : ISO/TC 24/SC 4 Caractérisation des particules
  •  :
    19.120 Analyse dimensionnelle des particules. Tamisage

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Format Langue
std 1 124 PDF + ePub
std 2 124 Papier
  • CHF124

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