<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>5195</id>
    <completedYear/>
    <publishedYear>2004</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>I-III, 5-38</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>21065</issue>
    <volume/>
    <type>report</type>
    <publisherName>Office for Official Publications of the European Communities</publisherName>
    <publisherPlace>Luxembourg</publisherPlace>
    <creatingCorporation>Institute for Reference Materials and Measurements</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Certification of the specific micropore volume and the median width of two microporous reference materials according to Draft-DIN 66135-4</title>
    <parentTitle language="eng">EUR</parentTitle>
    <identifier type="old">5495</identifier>
    <identifier type="url">https://ec.europa.eu/jrc/sites/default/files/rm/BCR-704_report.pdf</identifier>
    <identifier type="issn">1018-5593</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="bibliotheksstandort">Ha 1021</enrichment>
    <author>Barbara Röhl-Kuhn</author>
    <author>Peter Klobes</author>
    <author>Klaus Meyer</author>
    <author>Peter Lorenz</author>
    <author>A. Lamberty</author>
    <author>B. Gawlik</author>
    <author>H. Muntau</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Poröse Materialien</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ZRM-Entwicklung</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Gasadsorption</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mikroporenbestimmung</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11979</id>
    <completedYear/>
    <publishedYear>1995</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>691</pageFirst>
    <pageLast>706</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5/6</issue>
    <volume>23</volume>
    <type>article</type>
    <publisherName>Verl. für Geowissenschaften Wutzke</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation>Gesellschaft für Geowissenschaften</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Matrix retardation studies: size and structure of the accessable pore space in fresh and altered crystalline rock</title>
    <abstract language="eng">For the assessment of the barrier function of the geosphere around a nuclear waste repository information about the nature of the accessible rock pore space and internal surfaces is needed. Intact samples of various types of fresh and altered crystalline rocks have been studied by means of mercury intrusion porosimetry and gas adsorption methods using various adsorbates. Furthermore, fluorescence microscopy and scanning electron microscopy was applied and the results were compared with those of impregnation with carbon-l4-polymethylmethacrylate (PMMA). Additional structural information was derived from hydraulic conductivity determinations using helium gas.
The investigations were focussed on the reliability of these measurements of intact core samples, the influence of rock composition, structure and geological evolution on the microstructure of the matrices and the consequences regarding the retardation properties of the bedrock.</abstract>
    <parentTitle language="eng">Zeitschrift für geologische Wissenschaften</parentTitle>
    <identifier type="old">13678</identifier>
    <identifier type="issn">0303-4534</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">27.01.2006</enrichment>
    <author>K.-H. Hellmuth</author>
    <author>Peter Klobes</author>
    <author>Klaus Meyer</author>
    <author>Barbara Röhl-Kuhn</author>
    <author>M. Siitari-Kauppi</author>
    <author>K. Hartikainen</author>
    <author>J. Hartikainen</author>
    <author>J. Timonen</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11981</id>
    <completedYear/>
    <publishedYear>1997</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>175</pageFirst>
    <pageLast>185</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>32</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verlag GmbH &amp; Co. KGaA</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Certification of reference material with special emphasis on porous solids</title>
    <abstract language="eng">Certified reference materials (CMRs) are very important for the reliability of the results of chemical analyses and, at the same time, constitute the basis of comparability of analytical data. The development of a new CRM is demonstrated using the example of porous and finely dispersed solids having specific surface area, specific pore volume, pore volume distribution, and mean pore radius as their characteristic values.
Many of the properties of reference materials to be certified, such as their elemental content, are established by means of measurement procedures relying on different and independent principles of measurement. With porous or finely dispersed solids, however, the characteristic values referring to pores strongly depend on the size of the probe molecules used, a fact which is due to the fractal character of these substrates. This is particularly true for the specific surface area or the pore volume. As a result, when applying the method of gas adsorption, the certified values refer to a specified probe gas, e.g. to nitrogen. The use of other gases yields different numerical values for the characteristic values to be certified.
Generally, the pore system of a solid contains pores of irregular shape. Therefore, depending on the presence of e.g. cylinder or slit pores, different evaluation models must be applied. For the verification of model calculation of microporous solids, zeolites with their crystallographically defined voids are particularly well suited. They can serve as a reference point for the correctness of the model used.</abstract>
    <parentTitle language="eng">Crystal research and technology</parentTitle>
    <identifier type="old">13680</identifier>
    <identifier type="issn">0023-4753</identifier>
    <identifier type="issn">1521-4079</identifier>
    <identifier type="issn">0232-1300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Klaus Meyer</author>
    <author>Peter Klobes</author>
    <author>Barbara Röhl-Kuhn</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11982</id>
    <completedYear/>
    <publishedYear>1998</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>214</pageFirst>
    <pageLast>217</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>42</volume>
    <type>article</type>
    <publisherName>GIT-Verlag</publisherName>
    <publisherPlace>Darmstadt</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Zertifizierung von Referenzmaterialien am Beispiel poröser hochdisperser Feststoffe für die Methode der Gasadsorption</title>
    <abstract language="deu">Entsprechend den BCR Guidelines für die Herstellung von zertifizierten Referenzmaterialien (CRMs) und den ISO Guides 30-35 wurden CRMs mit den Kenngrößen spezifische Oberfläche, spezifisches Porenvolumen und Porenradius hergestellt. Als Methode wurde die Gasadsorption verwendet. Die Zertifizierungsanalyse und die Referenzmaterialien selbst werden beschrieben.</abstract>
    <parentTitle language="deu">GIT : Labor-Fachzeitschrift</parentTitle>
    <identifier type="old">13681</identifier>
    <identifier type="issn">0016-3538</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Peter Klobes</author>
    <author>Barbara Röhl-Kuhn</author>
    <author>Klaus Meyer</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Zertifizierte Referenzmaterialien</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Gasadsorption</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Spezifische Oberfläche</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Spezifisches Porenvolumen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Porenradius</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Poröse Materialien</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Disperse Feststoffe</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Certified reference materials</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Gas adsorption</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Specific surface area</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Specific pore volume</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Pore radius</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Porous materials</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Dispersed solids</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11973</id>
    <completedYear/>
    <publishedYear>1998</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>393</pageFirst>
    <pageLast>397</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3-4</issue>
    <volume>360</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Development of porous and dispersed CRM</title>
    <abstract language="eng">Abstract Porous and finely dispersed certified reference materials (CRM) were certified using the gas adsorption method. The special certification procedure for IUPAC isotherm classification types I, II, and IV is presented for meso- and macroporous materials with special emphasis on specific surface area, specific pore volume and pore width according to standards DIN 66 131, 66 134, and 66 135. Four CRMs (SiO2, f-Al2O3, two transition aluminas) with a macro- and mesopore range are presented. Certification was made on the basis of BCR guidelines in connection with interlaboratory tests (altogether 38 participating laboratories, 44 various gas adsorption apparatus).</abstract>
    <parentTitle language="eng">Fresenius' journal of analytical chemistry</parentTitle>
    <identifier type="old">13671</identifier>
    <identifier type="issn">0937-0633</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Barbara Röhl-Kuhn</author>
    <author>Klaus Meyer</author>
    <author>Peter Klobes</author>
    <author>Thomas Fritz</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>11954</id>
    <completedYear/>
    <publishedYear>1994</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>903</pageFirst>
    <pageLast>930</pageLast>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>29</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verlag GmbH &amp; Co. KGaA</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Porous Solids and their Characterization</title>
    <abstract language="eng">Porous and finely divided solids are distinguished by a large surface to volume ratio. As a result, they have specific properties, such as enhanced reactivity, a high adsorption capacity, and a lowered sinter temperature.
This contribution gives a survey over selected aspects of porous solids, with tlfe main emphasis on methods of characterization and their applications. We treat porous solids with a regular pore network (zeolites) and irregular pore structure (sintered compacts,rocks). After a short review of the possibilities orf characterization, we wilI describe the methods of gas adsorption and Hg intrusion in detail. Furthermore, we will give a critical assessment of the measurement of typical characterization parameters, such as the spedfic surface area, the pore volume and the pore volume distribution. The fractal character of large-surface and porous solids and the related uncertainty of the outcomes of measurements result in the necessity of standardization of experimental procedures and in the need for reference materials.
The section on applications treats examples of porous solids from different areas: densification of ceramic materials, porous ceramic carriers for flue gas desulfurization, technical catalysts (zeolite/binder), zeolites for the separation of substances, sedimentary and crystalline rocks.</abstract>
    <parentTitle language="eng">Crystal research and technology</parentTitle>
    <identifier type="old">13652</identifier>
    <identifier type="issn">0023-4753</identifier>
    <identifier type="issn">1521-4079</identifier>
    <identifier type="issn">0232-1300</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <author>Klaus Meyer</author>
    <author>Peter Lorenz</author>
    <author>Barbara Röhl-Kuhn</author>
    <author>Peter Klobes</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
</export-example>
