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Determination of the specific surface area of solids by gas adsorption — BET method
| 분야 | ISO/TC 24/SC 4 : Particle characterization |
|---|---|
| 적용범위 | 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. |
| 국제분류(ICS)코드 | 19.120 : 입도 분석. 체가름 |
| 페이지수 | 22 |
| Edition | 3 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 9277:2022 | Determination of the specific surface area of solids by gas adsorption — BET method | 2022-11-08 | 표준 |
| 2 | ISO 9277:2010 | Determination of the specific surface area of solids by gas adsorption — BET method | 2010-08-20 | 구판 |
| 3 | ISO 9277:1995 | Determination of the specific surface area of solids by gas adsorption using the BET method | 1995-05-18 | 구판 |
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