ISO INTERNATIONAL STANDARD 5016 Second edition 1997-07-01 ANSI Internat Doe Sec Shaped insulating refractory products - Determination of bulk density and true porosity Produits refractaires isolants fagonnes -Determination de la masse volumique apparente et de la porosite réelle ISO Reference number ISO5016:1997(E) No reproduction 1 or networking permitted without license from IHS ISO 5016:1997(E) Foreword Iso (the International Organization for Standardization) is a worldwide federationofnationalstandardsbodies(ISOmemberbodies).Theworkof preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 5016 was prepared by Technical Committee ISO/TC33,Refractories. This second edition cancels and replaces the first edition (ISO 5016:1986), which has been technically revised. @ISO1997 All rightsreserved.Unless otherwisespecified,nopartofthispublicationmaybereproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm,withoutpermission in writingfromthepublisher. International Organization for Standardization Casepostale 56.CH-1211Geneve20.Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; o=isocs; S=central Printed in Switzerland Copyright International Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 5016:1997(E) INTERNATIONAL STANDARD ISO Shaped insulating refractory products -- Determination of bulk density and true porosity 1 Scope This International Standard specifies a method for the determination of the bulk density and true porosity of shaped insulating refractory products. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 5017:1), Dense shaped refractory products Determination of bulk density apparent porosity and true porosity. ISO 5018:1983,Refractory materials --- Determination of true density. 3 Definitions For the purposes of this International Standard, the following definitions apply. 3.1 bulk density, Pb : Ratio of the mass of the dry material of a porous body to its bulk volume. 3.2 bulk volume, V : Sum of the volumes of the solid material, the open pores and the closed pores in a porous body. NOTE - The roughness of the surface limits the accuracy of definition of the bulk volume and, in consequence, the bulk density. Also, the notion of bulk density becomes less precise when the volume of the sample diminishes below certain limits or when its texture (size of pores and grains) is too coarse 1) To be published. (Revision of ISO 5017:1988) oduction or Not for Resale