1、 ISO 2012 Thermal insulating products for building applications Determination of compressive creep Produits isolants thermiques destins aux applications du btiment Dtermination du fluage en compression INTERNATIONAL STANDARD ISO 16534 First edition 2012-05-15 Reference number ISO 16534:2012(E) ISO 1
2、6534:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 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 permissio
3、n 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 Switzerland ISO 16534:2012(E) ISO 2012 All r
4、ights reserved iii Contents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 T erms and definitions . 1 4 Principle . 3 5 Apparatus 3 6 Test specimens 4 6.1 Selection of test specimens . 4 6.2 Dimensions of test specimens 4 6.3 Number of test specimens 5 6.4 Preparation of test
5、 specimens . 5 6.5 Conditioning of test specimens 5 7 Procedure 5 7.1 Test conditions . 5 7.2 Stress selection . 6 7.3 Test procedure . 6 7.4 Duration of test 7 8 Calculation and expression of results . 7 9 Accuracy of measurement 7 10 Test report . 7 Annex A (normative) Calculation method 10 Annex
6、B (informative) Example of a linear regression analysis 13 Bibliography .16 ISO 16534:2012(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carrie
7、d 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. IS
8、O 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 Internatio
9、nal 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 of the ele
10、ments 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 16534 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement
11、methods. ISO 16534 includes the original EN 1606 prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products”, with the following clauses modified to reflect the conditions for tropical countries: Clause 6.5: Conditioning of test specimens; Clause 7.1: Test conditions; Claus
12、e 10: Test report. iv ISO 2012 All rights reserved ISO 16534:2012(E) Introduction ISO 16534 is one of a series of existing European Standards on test methods which were adopted by ISO. This group of International Standards comprises the following group of interrelated standards: ISO Title Respective
13、 EN standard 12344 Thermal insulating products for building applications Determination of bending behaviour EN 12089 12968 Thermal insulation products for building applications Determination of the pull-off resistance of external thermal insulation composite systems (ETICS) (foam block test) EN 1349
14、5 29465 Thermal insulating products for building applications Determination of length and width EN 822 29466 Thermal insulating products for building applications Determination of thickness EN 823 29467 Thermal insulating products for building applications Determination of squareness EN 824 29468 Th
15、ermal insulating products for building applications Determination of flatness EN 825 29469 Thermal insulating products for building applications Determination of compression behaviour EN 826 29470 Thermal insulating products for building applications Determination of the apparent density EN 1602 294
16、71 Thermal insulating products for building applications Determination of dimensional stability under constant normal laboratory conditions (23 degrees C/50 % relative humidity) EN 1603 29472 Thermal insulating products for building applications Determination of dimensional stability under specified
17、 temperature and humidity conditions EN 1604 29764 Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1605 29765 Thermal insulating products for building applications Determination of tensile strength perp
18、endicular to faces EN 1607 29766 Thermal insulating products for building applications Determination of tensile strength parallel to faces EN 1608 29767 Thermal insulating products for building applications Determination of short- term water absorption by partial immersion EN 1609 29768 Thermal insu
19、lating products for building applications Determination of linear dimensions of test specimens EN 12085 29769 Thermal insulating products for building applications Determination of behaviour under point load EN 12430 29770 Thermal insulating products for building applications Determination of thickn
20、ess for floating-floor insulating products EN 12431 ISO 2012 All rights reserved v ISO 16534:2012(E) 29771 Thermal insulating materials for building applications Determination of organic content EN 13820 29803 Thermal insulation products for building applications Determination of the resistance to i
21、mpact of external thermal insulation composite systems (ETICS) EN 13497 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 29805 Thermal insulation products for buildi
22、ng applications Determination of the mechanical properties of glass fibre meshes EN 13496 16534 Thermal insulating products for building applications Determination of compressive creep EN 1606 16535 Thermal insulating products for building applications Determination of long- term water absorption by
23、 immersion EN 12087 16536 Thermal insulating products for building applications Determination of long- term water absorption by diffusion EN 12088 16537 Thermal insulating products for building applications Determination of shear behaviour EN 12090 16546 Thermal insulating products for building appl
24、ications Determination of freeze- thaw resistance EN 12091 16544 Thermal insulating products for building applications Conditioning to moisture equilibrium under specified temperature and humidity conditions EN 12429 16545 Thermal insulating products for building applications Determination of behavi
25、our under cyclic loading EN 13793 A further group of existing European Standards on test methods for products used to insulate building equipment and industrial installations comprises the following group of interrelated International Standards: ISO 12623 Thermal insulating products for building equ
26、ipment and industrial installations Determination of short-term water absorption by partial immersion of preformed pipe insulation EN 13472 ISO 12624 Thermal insulating products for building equipment and industrial installations Determination of trace quantities of water soluble chloride, fluoride,
27、 silicate, sodium ions and pH EN 13468 ISO 12628 Thermal insulating products for building equipment and industrial installations Determination of dimensions, squareness and linearity of preformed pipe insulation EN 13467 ISO 12629 Thermal insulating products for building equipment and industrial ins
28、tallations Determination of water vapour transmission properties of preformed pipe insulation EN 13469 vi ISO 2012 All rights reserved INTERNATIONAL STANDARD ISO 16534:2012(E) Thermal insulating products for building applications Determination of compressive creep 1 Scope This International Standard
29、 specifies the equipment and procedures for determining the compressive creep of specimens under various conditions of stress. It is applicable to thermal insulating products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated
30、references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 29469, Thermal insulating products for building applications Determination of compression behaviour ISO 29768, Thermal insulating products for bui
31、lding applications Determination of linear dimensions of test specimens ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method 3 T erms and definitio ns For the
32、purposes of this document, the following definitions apply. 3.1 thickness linear dimension measured perpendicular to the length and width plane 3.1.1 thickness d original product thickness 3.1.2 thickness d s initial thickness of the test specimen 3.1.3 thickness d L thickness of the test specimen u
33、nder the basic compressive stress of the loading device (dead weight) 3.1.4 thickness d 0 thickness of the test specimen 60 s after the beginning of the loading process 3.1.5 thickness d t thickness of the test specimen at a given time, t ISO 2012 All rights reserved 1 ISO 16534:2012(E) 3.2 compress
34、ive stress c ratio of the compressive force to the initial surface area of the cross-section of the test specimen 3.3 deformation X reduction in thickness of the test specimen 3.4 relative deformation ratio of the deformation of the test specimen X, and its thickness d s , measured in the direction
35、of loading 3.5 compressive creep X ct increase in deformation of the test specimen under a constant stress with time under specified conditions of temperature and humidity X ct= X t X 0 where X tis the deformation at time t; X 0is the initial deformation (after 60 s from the beginning of loading). A
36、n illustration of the different thicknesses and deformations is given in Figure 1. 2 ISO 2012 All rights reserved ISO 16534:2012(E) Key a thickness b time, t c deformation curve d Lreference value for deformation measurements 1 Dead weight of the loading device ( 10 % of the smallest stress chosen f
37、or the creep test). 2 Load applied in the compressive creep test. NOTE In the illustration, d Lis used as a reference value for deformation measurements. If d sis used as the reference value, the illustration can be used, omitting the column for d L(see 7.3). Figure 1 Illustration of the different t
38、hicknesses and deformations 4 Principle The compressive creep is determined by measuring the increase in deformation of a specimen under constant compressive stress and specified conditions of temperature, humidity and time. 5 Apparatus 5.1 Loading device, consisting of two flat platens, one of whic
39、h shall be movable, arranged so that they compress the specimen in a vertical direction. The movable platen shall be guided in such a manner as to be self-aligning. The platens shall be capable of being loaded smoothly and without distortion so that, during the test, the static stress does not chang
40、e by more than 5 %. 5.2 Measuring device (e.g. dial gauge), capable of determining the distance between the two platens, i.e. the deformation of the specimen, to an accuracy of 0,01 mm. 5.3 Suitable damping measures, to minimize the effects of external vibration (e.g. substantial foundation of the a
41、pparatus support). Examples of the testing apparatus are given in Figure 2. ISO 2012 All rights reserved 3 ISO 16534:2012(E) a) b) Key 1 displacement transducer or dial gauge 4 test specimen 2 loading bridge 5 support beam 3 load distribution plate (movable, self-aligning) 6 loading by weights Figur
42、e 2 Examples of test apparatus 6 Test specimens 6.1 Selection of test specimens The specimens for determining the compressive creep shall be taken from the same sample, with the same preparation as the specimens used for the compression test as specified in EN 826. The method of selecting the specim
43、ens shall be as specified in the relevant product standard. NOTE In the absence of a product standard or any other technical specification, the method of selection of the test specimens can be agreed between parties. 6.2 Dimensions of test specimens The thickness of specimens shall be equal to the o
44、riginal product thickness. The width of the specimens shall not be less than their thickness. Products with facings or integrally moulded skins which are retained in use shall be tested with these faces or skins intact. 4 ISO 2012 All rights reserved ISO 16534:2012(E) Test specimens shall not be lay
45、ered to produce a greater thickness for testing. The specimens shall be cut squarely and have sides with the following recommended dimensions: 50 mm 50 mm; or 100 mm 100 mm; or 150 mm 150 mm; or 200 mm 200 mm or 300 mm 300 mm. The dimensions of specimens shall be the same as used in the compression
46、test as described in ISO 29469. These are specified in the relevant product standard or agreed between parties. The linear dimensions shall be determined in accordance with ISO 29768, to an accuracy of 0,5 %. The tolerance and parallelism and flatness between the upper and lower face of the specimen
47、 shall not be greater than 0,5 % of its side length, with a maximum of 0,5 mm. If the specimen is not flat, it shall be ground flat or an adequate coating shall be applied to prepare the surface for the test. Where it is coated, no significant creep should occur in the coating or it shall be taken i
48、nto account by deducting the creep of the coating. 6.3 Number of test specimens The number of specimens shall be as specified in the relevant product standard. If the number is not specified, then at least three specimens shall be used for each compressive stress selected from 7.2. NOTE In the absen
49、ce of a product standard or any other technical specification, the number of specimens can be agreed between parties. 6.4 Preparation of test specimens The specimens shall be cut so that the direction of loading applied to the product will correspond to the direction in which the compressive forces are applied to the product in use. The specimens shall be cut by methods that do not change the original structure of the product. For pro
