1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 18099:2013Thermal insulating productsfor building equipmentand industrial installations Determination of thecoefficient of thermalexpansionBS ISO 18099:2013 BRITISH STANDA
2、RDNational forewordThis British Standard is the UK implementation of ISO 18099:2013.The UK participation in its preparation was entrusted to TechnicalCommittee B/540/8, Mirror committee for ISO/TC 163 - ThermalPerformance and Energy use in the built Environment.A list of organizations represented on
3、 this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 79588 6ICS
4、 91.100.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2013.Amendments issued since publicationDate Text affectedBS ISO 18099:2013 ISO 2013Thermal insu
5、lating products for building equipment and industrial installations Determination of the coefficient of thermal expansionProduits isolants thermiques pour lquipement du btiment et les installations industrielles Dtermination du coefficient de dilatation thermiqueINTERNATIONAL STANDARDISO18099First e
6、dition2013-04-15Reference numberISO 18099:2013(E)BS ISO 18099:2013ISO 18099:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, ele
7、ctronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. +
8、 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 18099:2013ISO 18099:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Terms and definitions . 13 Principle 24 Apparatus . 25 Test specimens 45.1 Dimensio
9、ns of test specimens . 45.2 Preparation of test specimens . 45.3 Number of test specimens . 55.4 Conditioning of test specimens . 56 Procedure. 56.1 Test conditions 56.2 Test procedure . 57 Calculation and expression of results . 68 Accuracy of measurement 69 Test report . 6BS ISO 18099:2013ISO 1809
10、9:2013(E)ForewordISO (the International 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 w
11、hich 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
12、 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 International Standards. Draft International Standards adopted by the technical committees are cir
13、culated 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 elements of this document may be the subject of patent rights. ISO shall not be held respons
14、ible for identifying any or all such patent rights.ISO 18099 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 18099 includes the original EN 13471 prepared by Technical Committee CEN/TC 88
15、, Thermal insulating materials and products.However, modifications were made to the following to reflect conditions for tropical countries: 5.4 “Conditioning of test specimens”; 6.1 “Test conditions”; and Clause 9 “Test repor t ”.iv ISO 2013 All rights reservedBS ISO 18099:2013ISO 18099:2013(E)Intro
16、ductionThis International Standard is one of a series of existing European Standards on test methods for products used to insulate building equipment and industrial installations which comprises the following group of International Standards:ISO standard TitleRespective EN standardISO 12623 Thermal
17、insulating products for building equipment and industrial installations Determination of short-term water absorption by partial immersion of preformed pipe insulationEN 13472ISO 12624 Thermal insulation products Determination of trace quantities of water soluble chloride, fluoride, silicate, sodium
18、ions and pHEN 13468ISO 12628 Thermal insulating products for building equipment and industrial installations Determination of dimensions, squareness and linearity of preformed pipe insulationEN 13467ISO 12629 Thermal insulating products for building equipment and industrial installations Determinati
19、on of water vapour transmission properties of preformed pipe insula-tionEN 13469ISO 18096 Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature for preformed pipe insulationEN 14707ISO 18097 Thermal insulating products for buildi
20、ng equipment and industrial installations Determination of maximum service temperatureEN 14706ISO 18098 Thermal insulating products for building equipment and industrial installations Determination of the apparent density of preformed pipe insulationEN 13470ISO 18099 Thermal insulating products for
21、building equipment and industrial installations Determination of the coefficient of thermal expansionEN 13471 ISO 2013 All rights reserved vBS ISO 18099:2013ISO 18099:2013(E)A further series of existing European Standards on test methods was adopted by ISO. This “package” of standards comprises the
22、following group of interrelated standards:ISO standard TitleRespective EN standardISO 12344 Thermal insulating products for building applications Determination of bending behaviourEN 12089ISO 12968 Thermal insulation products for building applications Determination of the pull-off resistance of exte
23、rnal thermal insulation composite systems (ETICS) (foam block test)EN 13495ISO 29465 Thermal insulating products for building applications Determination of length and widthEN 822ISO 29466 Thermal insulating products for building applications Determination of thick-nessEN 823ISO 29467 Thermal insulat
24、ing products for building applications Determination of square-nessEN 824ISO 29468 Thermal insulating products for building applications Determination of flatness EN 825ISO 29469 Thermal insulating products for building applications Determination of com-pression behaviourEN 826ISO 29470 Thermal insu
25、lating products for building applications Determination of the apparent densityEN 1602ISO 29471 Thermal insulating products for building applications Determination of dimen-sional stability under constant normal laboratory conditions (23 degrees C/50 % relative humidity)EN 1603ISO 29472 Thermal insu
26、lating products for building applications Determination of dimen-sional stability under specified temperature and humidity conditionsEN 1604ISO 29764 Thermal insulating products for building applications Determination of defor-mation under specified compressive load and temperature conditionsEN 1605
27、ISO 29765 Thermal insulating products for building applications Determination of tensile strength perpendicular to facesEN 1607ISO 29766 Thermal insulating products for building applications Determination of tensile strength parallel to facesEN 1608ISO 29767 Thermal insulating products for building
28、applications Determination of short-term water absorption by partial immersionEN 1609ISO 29768 Thermal insulating products for building applications Determination of linear dimensions of test specimensEN 12085ISO 29769 Thermal insulating products for building applications Determination of behav-iour
29、 under point loadEN 12430ISO 29770 Thermal insulating products for building applications Determination of thick-ness for floating-floor insulating productsEN 12431ISO 29771 Thermal insulating materials for building applications Determination of organic contentEN 13820ISO 29803 Thermal insulation pro
30、ducts for building applications Determination of the resistance to impact of external thermal insulation composite systems (ETICS)EN 13497vi ISO 2013 All rights reservedBS ISO 18099:2013ISO 18099:2013(E)The Application of Agreement on technical cooperation between ISO and CEN (Vienna Agreement), Mod
31、es 1, 2, 4, and 5, was not approved by CEN/TC 88 and the necessity not seen by its stakeholders.This International Standard is one of a series of standards which specify test methods for determining dimensions and properties of thermal insulating materials and products. The original EN 13471 support
32、s a series of product standards for thermal insulating materials and products which derive from the Council Directive of 21 December 1988 on the approximation of laws, regulations, and administrative provisions of the Member States relating to construction products (Directive 89/106/EEC) through the
33、 consideration of the essential requirements.This International Standard has been prepared for products used to insulate building equipment and industrial installations, but it may also be applied to products used in other areas. ISO 2013 All rights reserved viiBS ISO 18099:2013BS ISO 18099:2013Ther
34、mal insulating products for building equipment and industrial installations Determination of the coefficient of thermal expansion1 ScopeThis International Standard specifies the equipment and procedures for determining the coefficient of linear thermal expansion. It is applicable to thermal insulati
35、ng products within the temperature range 196 C to 850 C, subject to the possible temperature limitation of the test specimens. It is not applicable to products which experience dimensional changes during the test due to the loss of hydration water or which undergo other phase changes.2 Terms and def
36、initionsFor the purposes of this document, the following terms and definitions apply.2.1linear thermal expansionreversible changes in the length of a product resulting from a change in temperature2.2mean coefficient of linear thermal expansion mbetween different temperaturesreversible change in leng
37、th divided by the length at the reference temperature and the temperature difference between the test temperatures2.3coefficient of thermal expansion tat the temperature Tlimit value of mas the higher temperature approaches the lower temperature (see Figure 1)Note 1 to entry: The definition of mand
38、tassumes that the function giving the length variation in relation to the temperature variation is continuous. This excludes the use of the mean coefficient of linear thermal expansion, m, when the test specimen experiences physical change due to change of phase, e.g. recrystallisation or loss of wa
39、ter of hydration. The curve giving the length variation as a function of the temperature variation can be reported but the mean coefficient of thermal expansion should not be calculated for parts of the curve which are not continuous.INTERNATIONAL STANDARD ISO 18099:2013(E) ISO 2013 All rights reser
40、ved 1BS ISO 18099:2013ISO 18099:2013(E)Keyatemperature1 The mean coefficient of thermal expansion between T1and T2is illustrated by the gradient of the dotted line between the points A and B.2 The coefficient of thermal expansion at T is illustrated by the gradient of the tangent at point C.Figure 1
41、 The relative length variation as a function of temperature3 PrincipleThe changes in a products linear dimensions, as its temperature is changed, are measured and characterised. It shall be done in a continuous way when the full curve over a temperature range is needed or only at two specified tempe
42、ratures if only a mean coefficient of linear thermal expansion between these temperatures is needed.4 Apparatus4.1 Dilatometer, with appropriate dimensions and suitable for the temperature range (see Figure 2).NOTE The usual dilatometers are of the tube or rod type, fabricated of high-purity vitreou
43、s silica. Modern dilatometers incorporate the essential features described below.4.2 Micrometer calliper, a calliper with micrometer indication permitting direct reading of the test specimen lengths at different temperatures. The accuracy of these measurements shall be such that consecutive measurem
44、ents at the same temperature are determined to 2 104 l0for the length and to 2 105 l0for the length variations.4.3 Electrical furnace, for high temperatures, an electrical furnace, capable of maintaining the mean temperature of the test specimen to within 2 K of the desired test temperature and the
45、maximum and minimum temperature of the test specimen to within 2 K.The electrical furnace shall be capable of limiting the rate of temperature change to 1 C/min during the change from one test temperature to another.2 ISO 2013 All rights reservedBS ISO 18099:2013ISO 18099:2013(E)4.4 Test chamber, fo
46、r low and cryogenic temperatures, a test chamber, capable of maintaining the mean temperature of the test specimen to within 1 K of the desired test temperature and the maximum and minimum temperature of the test specimen to within 1 K.The test chamber shall be capable of limiting the rate of temper
47、ature change to 1 C/min during the change from one test temperature to another.4.5 Temperature-measuring instruments, calibrated thermocouples suitable for the temperature needed for the test with an accuracy of 0,5 K from 196 C to 200 C, 1 K from 200 C to 500 C, and 2 K from 500 C to 850 C.The ther
48、mocouples are connected to a continuous recording device. If only the mean coefficient of linear thermal expansion, m,between two temperatures is needed, the measurements shall only be carried out at these temperatures.NOTE Devices which are normally used for the simultaneous recording of the length
49、 variation and the temperature provide a curve of ll0as a function of T2- T1.4.6 Equipment to prepare the test specimen, suitable saw or thin-walled steel tube to prepare the test specimen. ISO 2013 All rights reserved 3BS ISO 18099:2013ISO 18099:2013(E)Key1 micrometer screw2 thermostat3 push-rod4 protective tube5 furnace6 test specimen7 linear variable differential transducer8 test specimen carrier9 thermocoupleFigure 2 Typical example of a di
