1、 Reference number ISO 29468:2008(E) ISO 2008INTERNATIONAL STANDARD ISO 29468 First edition 2008-11-01 Thermal insulating products for building applications Determination of flatness Produits isolants thermiques destins aux applications du btiment Dtermination de la planit ISO 29468:2008(E) PDF discl
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5、CTED 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 photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs me
6、mber 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 Switzerland ii ISO 2008 All rights reservedISO 29468:2008(E) ISO 2008 All rights reserved iii Contents P
7、age Foreword iv Introduction v 1 Scope . 1 2 Terms and definitions. 1 3 Principle. 1 4 Apparatus 1 5 Test specimens . 1 6 Procedure 3 7 Calculation and expression of results 3 8 Accuracy of measurement. 4 9 Test report . 4 ISO 29468:2008(E) iv ISO 2008 All rights reservedForeword ISO (the Internatio
8、nal Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of 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
9、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 standar
10、dization. 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 International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for v
11、oting. 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 of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all s
12、uch patent rights. ISO 29468 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods. ISO 29468:2008(E) ISO 2008 All rights reserved v Introduction This International Standard comprises the original
13、EN 825:1994 prepared by Technical Committee CEN/TC 88, Thermal insulating materials and products, which has been amended by ISO/TC 163/SC 1 with reference to conditioning and testing conditions in tropical countries. This International Standard is one of a series of documents specifying test methods
14、 based on existing European Standards, that are being adopted by ISO. This “package” of standards includes the following group of interrelated documents. International Standard Respective EN standard ISO 29465, Thermal insulating products for building applications Determination of length and width
15、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 building applications Determination of flatness EN
16、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 insulating products for building applications Determina
17、tion of dimensional stability under constant normal laboratory conditions (23C/50 % relative humidity) EN 1603 ISO 29472, Thermal insulating products for building applications Determination of dimensional stability under specified temperature and humidity conditions EN 1604 ISO 29764, Thermal insula
18、ting 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 faces EN 1607 ISO 29766, Thermal insulating pro
19、ducts 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 insulating products for building applications Det
20、ermination of linear dimensions of test specimens EN 12085 ISO 29769, Thermal insulating products for building applications Determination of behaviour under point load EN 12430 ISO 29468:2008(E) vi ISO 2008 All rights reservedISO 29770, Thermal insulating products for building applications Determina
21、tion 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 Determination of the resistance to impact of external thermal
22、 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 ISO 29805, Thermal insulation products for building applications
23、 Determination of the mechanical properties of glass fibre meshes EN 13496 INTERNATIONAL STANDARD ISO 29468:2008(E) ISO 2008 All rights reserved 1 Thermal insulating products for building applications Determination of flatness 1 Scope This International Standard specifies the equipment and procedure
24、s for determining the deviation from flatness for full-size products. It is applicable to thermal insulating products. 2 Terms and definitions For the purposes of this document, the following term and definition apply. 2.1 deviation from flatness the maximum distance between the product, placed on a
25、 flat surface with the convex side uppermost, and the flat surface 3 Principle The maximum distance between the product placed on a flat surface and the flat surface is measured. 4 Apparatus 4.1 Flat surface. 4.2 Metal rule or metal tape, graduated in millimetres and permitting reading to 0,5 mm. 4.
26、3 Rigid frame, with a movable measuring device consisting of a disc with a diameter of 30 mm, fixed to a graduated pin or a dial gauge (graduated to at least 0,5 mm) applying a load of (2,0 0,1) N. Any test equipment that provides the same result with at least the same accuracy may be used. 5 Test s
27、pecimens 5.1 Dimensions of test specimens The test specimen shall be the full-size product. 5.2 Number of test specimens The number of test specimens shall be as specified in the relevant product standard. In the absence of a product standard, the number of test specimens may be agreed upon. ISO 294
28、68:2008(E) 2 ISO 2008 All rights reserved5.3 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case of dispute, they shall be stored at (23 2) C and (50 5) % relative humidity for the time specified in the relevant product standard. In tropical countr
29、ies different conditioning and testing conditions can be relevant. In this case, the conditions shall be 27 C and 65 % RH and be stated clearly in the test report. a) Deviation from flatness in length b) Deviation from flatness in width Figure 1 Measurement of deviation from flatness ISO 29468:2008(
30、E) ISO 2008 All rights reserved 3Figure 2 Location of maximum and minimum distances 6 Procedure 6.1 Test conditions The test shall be carried out at (23 5) C. In case of dispute, it shall be carried out at (23 2) C and (50 5) % relative humidity. In tropical countries different conditioning and test
31、ing conditions can be relevant. In this case, the conditions shall be 27 C and 65 % RH and be stated clearly in the test report. 6.2 Test procedure 6.2.1 Lay the test specimen with the convex face, if any, uppermost on a flat surface. If there is a visible deviation from flatness only along the leng
32、th or only along the width, make the measurement in accordance with 6.2.2 see Figure 1, a) and 1b). If there is a deviation from flatness along both the length and width (warped products), make the measurement in accordance with 6.2.3 (see Figure 2). 6.2.2 Using the metal tape or rule, measure the m
33、aximum distance between the bottom edge of the specimen and the flat surface, S max , to the nearest 0,5 mm. 6.2.3 Locate the maximum and minimum distances from the flat surface using the measuring device (see 4.3) as shown in Figure 2. At these positions, read the distances Y maxand Y minto the nea
34、rest 0,5 mm. If the test specimen rests on only three points, there exists the possibility of alternative flatness measurements; all shall be measured. 7 Calculation and expression of results For test specimens with deviation from flatness in one direction only, report the deviation as the maximum v
35、alue measured, expressed in millimetres. For warped products, calculate the deviation from flatness, S max , expressed in millimetres, using Equation (1): S max= Y max Y min (1) ISO 29468:2008(E) 4 ISO 2008 All rights reserved8 Accuracy of measurement NOTE It has not been possible to include a state
36、ment of the accuracy of the method in this edition of this International Standard, but it is intended to include such a statement when this International Standard is next revised. 9 Test report The test report shall include the following information: a) reference to this International Standard; b) p
37、roduct 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 thickness, nominal density; c) test procedure: 1) pre-test
38、 history and sampling, i.e., the name of person taking the samples and sampling site, 2) conditioning, 3) deviation from Clauses 5 and 6, if any, 4) conditioning and testing conditions in tropical countries, if applicable, 5) date of test, 6) general information relating to the test, 7) any occurren
39、ces which may have affected the results; NOTE It is expected that information about the apparatus and identity of the technician be available in the laboratory, but it is not necessary that it be recorded in the report. d) results: all individual values and the maximum value of the deviation from flatness and the position where it occurred. ISO 29468:2008(E) ICS 91.100.60 Price based on 4 pages ISO 2008 All rights reserved
