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ISO 9277:2022

Determination of the specific surface area of solids by gas adsorption — BET method
8. 11. 2022.

Опште информације

60.60     8. 11. 2022.

ISO

ISO/TC 24/SC 4

Međunarodni standard

19.120  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 9277:2010

TRENUTNO

OBJAVLJEN
ISO 9277:2022
60.60 Standard objavljen
8. 11. 2022.