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ISO 9277:2022

Determination of the specific surface area of solids by gas adsorption - BET method

standard by International Organization for Standardization , 10/31/2022

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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.

 

Product Details

Published:
10/31/2022
File Size:
1 file , 1.5 MB
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This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 9277:2022

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    Determination of the specific surface area of solids by gas adsorption - BET method

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  2. ISO 9277:2010


    Determination of the specific surface area of solids by gas adsorption - BET method

    • Historical Version

  3. ISO 9277:1995


    Determination of the specific surface area of solids by gas adsorption using the BET method

    • Historical Version