1、BS ISO29470:2008ICS 91.100.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDThermal insulatingproducts for buildingapplications Determination of theapparent densityThis British Standardwas published underthe authority of theStandards Policy andStrategy Committe
2、e on 32008 BSI 2008ISBN 978 0 580 58940 9Amendments/corrigenda issued since publicationDate CommentsBS ISO 29470:2008National forewordThis British Standard is the UK implementation of ISO 29470:2008.The UK participation in its preparation was entrusted to TechnicalCommittee B/540/8, Mirror committee
3、 for ISO/TC 163.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer
4、immunityfrom legal obligations.1 OctoberBS ISO 29470:2008Reference numberISO 29470:2008(E)ISO 2008INTERNATIONAL STANDARD ISO29470First edition2008-09-15Thermal insulating products for building applications Determination of the apparent density Produits isolants thermiques destins aux applications du
5、 btiment Dtermination de la masse volumique apparente BS ISO 29470:2008ISO 29470:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are lic
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8、 to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photoco
9、pying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switze
10、rland ii ISO 2008 All rights reservedBS ISO 29470:2008ISO 29470:2008(E) ISO 2008 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is norma
11、lly 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 th
12、e work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare
13、International Standards. Draft International Standards adopted by the technical committees are 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. Attention is drawn to the possibility that some
14、of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 29470 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and me
15、asurement methods. BS ISO 29470:2008ISO 29470:2008(E) iv ISO 2008 All rights reservedIntroduction For this document, the conditions of approval within the Fast-Track procedure were not met, thus this document could not progress to the publication stage. ISO/TC 163/SC 1 decided per Resolution 205 in
16、its Nanjing-meeting on 2008-04-15, that this document shall be forwarded modified to the FDIS-vote. This International Standard includes the original EN 1602:1996 and EN 1602:1996/AC:1997 prepared by Technical Committee CEN/TC 88, Thermal insulating materials and products. This International Standar
17、d is one of a series of documents specifying test methods, based on existing European Standards, that are being adopted by ISO. This “package” of standards includes the following group of interrelated documents. ISO document Respective EN standardISO 29465, Thermal insulating products for building a
18、pplications Determination of length and width EN 822 ISO 29466, Thermal insulating products for building applications Determination of thickness EN 823 ISO 29467, Thermal insulating products for building applications Determination of squareness EN 824 ISO 29468, Thermal insulating products for build
19、ing applications Determination of flatness EN 825 ISO 29469, Thermal insulating products for building applications Determination of compression behaviour EN 826 ISO 29470, Thermal insulating products for building applications Determination of the apparent density EN 1602 ISO 29471, Thermal insulatin
20、g products for building applications Determination of dimensional stability under constant normal laboratory conditions (23 C/50 % relative humidity) EN 1603 ISO 29472, Thermal insulating products for building applications Determination of dimensional stability under specified temperature and humidi
21、ty conditions EN 1604 ISO 29764, Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1605 ISO 29765, Thermal insulating products for building applications Determination of tensile strength perpendicular to
22、faces EN 1607 ISO 29766, Thermal insulating products for building applications Determination of tensile strength parallel to faces EN 1608 ISO 29767, Thermal insulating products for building applications Determination of short-term water absorption by partial immersion EN 1609 ISO 29768, Thermal ins
23、ulating products for building applications Determination of linear dimensions of test specimens EN 12085 BS ISO 29470:2008ISO 29470:2008(E) ISO 2008 All rights reserved vISO 29769, Thermal insulating products for building applications Determination of behaviour under point load EN 12430 ISO 29770, T
24、hermal insulating products for building applications Determination of thickness for floating-floor insulating products EN 12431 ISO 29771, Thermal insulating materials for building applications Determination of organic content EN 13820 ISO 29803, Thermal insulation products for building applications
25、 Determination of the resistance to impact of external thermal insulation composite systems (ETICS) EN 13497 ISO 29804, Thermal insulation products for building applications Determination of the tensile bond strength of the adhesive and of the base coat to the thermal insulation material EN 13494 IS
26、O 29805, Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes EN 13496 BS ISO 29470:2008BS ISO 29470:2008INTERNATIONAL STANDARD ISO 29470:2008(E) ISO 2008 All rights reserved 1Thermal insulating products for building applications Dete
27、rmination of the apparent density 1 Scope This International Standard specifies the equipment and procedures for determining the apparent overall density and the apparent core density under reference conditions. It is applicable to full-size thermal insulating products and test specimens. This Inter
28、national Standard can also be applied to the individual layers of multi-layered products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition
29、 of the referenced document (including any amendments) applies. ISO 29465, Thermal insulating products for building applications Determination of length and width ISO 29466, Thermal insulating products for building applications Determination of thickness ISO 29768, Thermal insulating products for bu
30、ilding applications Determination of linear dimensions of test specimens 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 apparent overall density amass per unit volume of a product, including all surface skins formed during production, but ex
31、cluding any facings and/or coatings 3.2 apparent core density cmass per unit volume of the core of a product after all surface skins formed during production and all facings and/or coatings have been removed 4 Principle The density is determined as the ratio of the mass and the volume of the specime
32、n. BS ISO 29470:2008ISO 29470:2008(E) 2 ISO 2008 All rights reserved5 Apparatus 5.1 Balance, capable of determining the mass of a specimen to an accuracy of 0,5 %. 5.2 Equipment, for the determination of linear dimensions (see 7.2). 6 Test specimens 6.1 Dimensions of test specimens The specimens sha
33、ll be full-size products or parts thereof, or specimens used for other tests. The shape of specimens shall be such that their volume can be easily calculated. When the apparent overall density is being determined using specimens cut from a product with surface skins formed during production, the rat
34、io of the area of the surface skin to the total volume shall be the same for the specimen as for the product. The size of a specimen should preferably be as large as possible, commensurate with the apparatus available and with the shape of the original product. The size of the specimens may also be
35、specified in other test methods. 6.2 Number of test specimens The number of specimens for full-size products shall be as specified in the relevant product standard. If specimens from other tests are used, the number shall be as specified in the test method. If the number is not specified, then at le
36、ast five test specimens shall be used. In the absence of a product standard or any other international or European technical specification, the number of specimens may be agreed between parties. 6.3 Preparation of test specimens The specimens shall be cut by methods that do not change the original s
37、tructure of the product. The location from which the specimens are taken shall be such that the density obtained is representative of the density of the product. For a determination of the apparent overall density, any facings and/or coatings shall be removed from the product. For a determination of
38、 the apparent core density, any surface skins formed during production and any facings and/or coatings shall be removed from the product. When it is not possible to remove the facings and/or coatings without influencing the apparent density of the product, the mass of the facings and/or coatings sha
39、ll be deducted by calculation. NOTE Special methods of preparation, when needed, are given in the relevant product standard. 6.4 Conditioning of test specimens The specimens shall be conditioned at (23 2) C and (50 5) % relative humidity until a constant mass is achieved. The time for conditioning a
40、nd the required accuracy of the constant-mass measurements shall be given in the relevant product standard. BS ISO 29470:2008ISO 29470:2008(E) ISO 2008 All rights reserved 3If it can be shown that temperature and humidity have negligible influence on the determination of the density, then the condit
41、ioning may be carried out at (23 5) C. The conditioning time can be shortened by pre-drying the specimen in a ventilated oven at a prescribed temperature. Appropriate procedures may be given in the relevant product standard. In tropical countries, different conditioning and testing conditions can be
42、 relevant. In this case, the conditions shall be 27 C/65 % RH and be stated clearly in the test report. 7 Procedure 7.1 Test conditions The test shall be carried out at (23 2) C and (50 5) % relative humidity. If it can be shown that temperature and humidity have negligible influence on the determin
43、ation of the density, testing may be carried out at (23 5) C. In tropical countries, different conditioning and testing conditions can be relevant. In this case, the conditions shall be 27 C/ 65 % RH and be stated clearly in the test report. 7.2 Test procedure Measure the linear dimensions of full-s
44、ize products in accordance with ISO 29465 and ISO 29466. Measure the linear dimensions of specimens in accordance with ISO 29768. For full-size products, the length, width and thickness shall be given to the nearest millimetre. For specimens, the measurements shall be made to an accuracy of 0,5 %. C
45、alculate the volumes of the specimens from these measurements. Weigh each specimen to an accuracy of 0,5 % and record its mass expressed in kilograms. If the facings and/or coatings are retained, the mass of the product shall be calculated by deducting the mass of the facings and/or coatings and adh
46、esives, if any, from the overall mass. If a greater accuracy for the dimensions of full size products is needed, this shall be specified in the relevant product standard. 8 Calculation and expression of results Calculate the apparent overall density, a, or apparent core density, c, expressed in kilo
47、grams per cubic metre, using Equation (1): mV = (1) where m is the mass of the specimen, expressed in kilograms; V is the volume of the specimen, expressed in cubic metres. (aor c) for the specimen shall be given to three significant figures. BS ISO 29470:2008ISO 29470:2008(E) 4 ISO 2008 All rights
48、reserved9 Accuracy of the measurement NOTE It has not been possible to include a statement on the accuracy of the measurement in this edition of the International Standard, but it is intended to include such a statement when the standard is next revised. 10 Test report The test report shall include
49、the following information: a) reference to this International Standard: ISO 29470:2008; b) product identification: 1) product name, factory, manufacturer, or supplier, 2) production code number, 3) type of product, 4) packaging, 5) form in which the product arrived at the laboratory, 6) other information as appropriate (e.g. nominal dimensions); c) test procedure: 1) pre-test history and sampling (person taking the sample, place of sampling), 2) conditioning, 3) drying co
