한국표준정보망

회원가입 로그인 비회원(주문조회) 장바구니 이용안내

English
메뉴
검색 마이페이지 장바구니0

QUICK

닫기

TOP

해외표준 상세정보

관심표준 등록 : 표준업데이트 시 알림서비스

제공형태 더보기

  • subList_img01

    미리보기

    표준

    판매

    ISO 15901-2:2022

    Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption — Part 2: Analysis of nanopores by gas adsorption
    • 발행일 : 2022-01-21
    • 발행기관 : ISO
    즐겨찾기 장바구니 담기
    닫기

    상품이 장바구니에 담겼습니다.

    장바구니로 이동

    • [영어]PDF 269,500원

    • [영어]PRINT 269,500원

상세정보

분야 ISO/TC 24/SC 4 : Particle characterization
적용범위

This document describes a method for the evaluation of porosity and pore size distribution by physical adsorption (or physisorption). The method is limited to the determination of the quantity of a gas adsorbed per unit mass of sample as a function of pressure at a controlled, constant temperature[1]-[9]. Commonly used adsorptive gases for physical adsorption characterization include nitrogen, argon, krypton at the temperatures of liquid nitrogen and argon (77 K and 87 K respectively) as well as CO2 (at 273 K). Traditionally, nitrogen and argon adsorption at 77 K and 87 K, respectively, allows one to assess pores in the approximate range of widths 0,45 nm to 50 nm, although improvements in temperature control and pressure measurement allow larger pore widths to be evaluated. CO2 adsorption at 273 K – 293 K can be applied for the microporous carbon materials exhibiting ultramicropores. Krypton adsorption at 77 K and 87 K is used to determine the surface area or porosity of materials with small surface area or for the analysis of thin porous films.

The method described is suitable for a wide range of porous materials. This document focuses on the determination of pore size distribution from as low as 0,4 nm up to approximately 100 nm. The determination of surface area is described in ISO 9277. The procedures which have been devised for the determination of the amount of gas adsorbed may be divided into two groups:

—    those which depend on the measurement of the amount of gas removed from the gas phase, i.e. manometric (volumetric) methods;

—    those which involve the measurement of the uptake of the gas by the adsorbent (i.e. direct determination of increase in mass by gravimetric methods).

In practice, static or dynamic techniques can be used to determine the amount of gas adsorbed. However, the static manometric method is generally considered the most suitable technique for undertaking physisorption measurements with nitrogen, argon and krypton at cryogenic temperatures (i.e. 77 K and 87 K, the boiling temperature of nitrogen and argon, respectively) with the goal of obtaining pore volume and pore size information. This document focuses only on the application of the manometric method.
국제분류(ICS)코드 19.120 : 입도 분석. 체가름
페이지수 29
Edition 2

이력정보

No. 표준번호 표준명 발행일 상태
1 ISO 15901-2:2022상세보기 Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption — Part 2: Analysis of nanopores by gas adsorption 2022-01-21 표준
2 ISO 15901-2:2006/Cor 1:2007상세보기 Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption — Part 2: Analysis of mesopores and macropores by gas adsorption — Technical Corrigendum 1 2007-05-07 구판
3 ISO 15901-2:2006상세보기 Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption — Part 2: Analysis of mesopores and macropores by gas adsorption 2006-12-11 구판

관련상품

다른 사람이 함께 구입한 상품

추천 상품

제공형태 닫기

  • PDF :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)

  • 보안PDF :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)* 단, 파일이동 및 복사 불가, 1회 다운로드 및 인쇄가능

  • PRINT :

    인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)

  • BOOK :

    인쇄본 우편발송, 2~3일 소요(PDF파일 미제공)

  • ZIP :

    압축파일형태로 제공 (PDF, HTML, TXT, XLS 등으로 구성), 직접 파일 다운로드(마이페이지 확인)

  • CD/DVD :

    직접 파일 다운로드 및 인쇄(마이페이지 확인)

  • DB :

    별도 정보 제공

  • HARDCOPY :

    해외 배송 상품, 최대 3주 소요

  • 바인더 :

    바인더 우편발송, 2~3일 소요

  • 온라인구독 :

    WEB 접속 후 실시간 열람, 출력(1년간)