GB/T 21650.1-2008 English PDFUS$374.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21650.1-2008: Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption -- Part 1: Mercury porosimetry Status: Valid
Basic dataStandard ID: GB/T 21650.1-2008 (GB/T21650.1-2008)Description (Translated English): Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption -- Part 1: Mercury porosimetry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A28 Classification of International Standard: 19.120 Word Count Estimation: 19,194 Date of Issue: 2008-04-16 Date of Implementation: 2008-10-01 Quoted Standard: GB/T 3723; ISO 8213; M 024 4/85 Adopted Standard: ISO 15901-1-2005, IDT Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard applies to most non- wetting of porous materials. This part is not suitable for amalgamation of the material, such as gold, aluminum, copper reduction, reduction of certain metals such as nickel and silver, if you must use this method, you need to sample pre- passivation. External pressure, some materials may deform or damage extruded and hole collapse occurs, the phenomenon of closed to open. In some cases, it may require the introduction of sample compression ratio correction factor to get useful data comparable. Thus, mercury method has comparable. GB/T 21650.1-2008: Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption -- Part 1: Mercury porosimetry---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Pore \u200b\u200bsize distribution and porosity of solid materials by mercury porosimetry and gas adsorption Part 1. Mercury porosimetry ICS 19.120 A28 National Standards of People's Republic of China GB/T 21650.1-2008/ISO 15901-1.2005 Of solid materials by mercury porosimetry pore size and gas adsorption Distribution and porosity Part 1. Mercury (ISO 15901-1.2005, IDT) Posted 2008-04-16 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Symbol 3 PRINCIPLE 4 6 instruments and materials 4 6.1 sample dilatometer 4 6.2 porosimetry 4 6.3 Mercury purity 5 7 instrument calibration and performance 5 7.1 General 5 7.2 pressure signal calibration 5 7.3 Volume calibration signal 5 Vacuum Sensor Calibration 5 7.4 7.5 porosimetry performance test 5 8 Step 5 8.1 Sample 5 8.1.1 Sample 5 obtained 8.1.2 Sample size 6 8.2 Method 6 8.2.1 Sample preparation 6 8.2.2 dilatometer sample loading 6 8.2.3 evacuated 6 8.2.4 Notes to the sample dilatometer mercury 6 8.2.5 Measurement 6 8.2.6 test is completed 7 8.2.7 Blank test sample and the compression ratio correction 7 9 7 Evaluation 9.1 Calculation of the pore size distribution 7 9.2 Calculation of specific pore volume 8 9.3 Calculation of the specific surface area 8 10 8 Report Appendix A (informative) alumina reference sample mercury analysis results 9 References 14 GB/T 21650.1-2008/ISO 15901-1.2005ForewordGB/T 21650 "Determination of mercury porosimetry and gas adsorption solid materials the pore size distribution and porosity" is divided into the following three parts. --- Part 1. Mercury; --- Part 2. Gas adsorption analysis mesopores and macropores; --- Part 3. Analysis of micropores by gas adsorption. This section GB/T Part of 121,650. This part identical with ISO 15901-1.2005 "Determination solid materials the pore size distribution and porosity of the first mercury porosimetry and gas adsorption Part. Mercury "(in English). For ease of use, editorial changes were made in this section. --- The "this International Standard" read. "this part"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- Renumbered; --- Remove the preamble international standards; --- Expressed to apply to the contents of the standard formulation; --- Delete section 7.5 certified reference material than supply communications and information agencies; --- Revised Appendix A in Figure A. 1, Figure A. 2 and Figure A. Position 3 axes text descriptions. Appendix A of this section is an informative annex. This part of the National and sorting method Standardization Technical Committee particles sieved (SAC/TC168) and focal points. This section is drafted. Beijing Physical and Chemical Analysis Center, Institute of Process Engineering. The main drafters of this section. Zhou Suhong, Zou Tao, Qing Zhu Shan, Huang to Chen Ying, plateau. GB/T 21650.1-2008/ISO 15901-1.2005IntroductionTypically, the different holes (micropores, mesopores and macropores) may be regarded as holes, channels or cavities within the solid, or the formation of the bed, pressed body or group The space between the solid particles of polymer (such as cracks or voids). Usually expressed porosity of the porous nature of the solid material, which is more accurate It is defined as. a certain amount of solids and voids hole can be determined by volume of the total volume of some solid share. In addition to measuring hole, the solid The obturator may be some of these holes is not connected with the outer surface, and the fluid can not penetrate. This section does not involve characterization of closed cells. The porous material may be a fine or coarse powder accumulation body, extrudates, flakes or monolithic body and the like. They usually include characterization measurement hole Size distribution and total pore volume or porosity. In order to meet certain requirements, sometimes need to study the shape of the hole and connectivity, as well as in the determination of the specific surface area And the outer surface area. The porous material of great technical importance in the following areas. --- Controlled drug release; ---catalytic; --- Gas separation; --- Including sterilization, including filtration; --- Materials Technology; --- Environmental protection and pollution control; --- Natural accumulator rocks; --- Materials properties; --- Polymers and ceramics.2 Normative referencesThe following documents contain provisions which, through reference GB/T 21650.1 of the present, constitute provisions of this section. For dated references Documents, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Research into whether the parties to the agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 3723 Sampling of chemical products for industrial use General Safety (GB/T 3723-1999, IDTISO 3165. 1976) Solid chemicals ISO 8213 sampling technology industrial chemicals from bulk powders to coarse particles of different shapes M0244/85 Association of mercury and its compounds occupational enjoy, chemical industry announcements, mail 101480, D-69004 Heidelberg, Germany3 Terms and DefinitionsThe following terms and definitions apply to this section. 3.1 Density of powder under specified conditions. 3.2 Only way to connect with the outer surface openings. 3.3 Not connected to the bore and the outer surface. NOTE. obturator discussion is not listed in this section. GB/T 21650.1-2008/ISO 15901-1.2005 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 21650.1-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 21650.1-2008_English as soon as possible, and keep you informed of the progress. 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