1、 Reference number ISO 29771:2008(E) ISO 2008INTERNATIONAL STANDARD ISO 29771 First edition 2008-11-01 Thermal insulating materials for building applications Determination of organic content Matriaux isolants thermiques destins aux applications du btiment Dtermination du contenu organique ISO 29771:2
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6、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 ii ISO 2008 All rights reservedISO 29771:2008(E) ISO 2008 All rights reserve
7、d iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Terms and definitions .1 3 Principle1 4 Apparatus.1 5 Test specimens2 6 Procedure.2 7 Calculation and expression of results 3 8 Accuracy of measurement3 9 Test report4 Annex A (informative) Example of a simplified method for the determination
8、of organic content5 Bibliography7 ISO 29771:2008(E) iv ISO 2008 All rights reservedForeword 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 carried out throu
9、gh 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 collabora
10、tes 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 International Standar
11、ds. 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 elements of th
12、is document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 29771 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods. IS
13、O 29771:2008(E) ISO 2008 All rights reserved vIntroduction This International Standard comprises the original EN 13820:2003 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 condi
14、tions in tropical countries. This International Standard 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. International Standard Respective
15、 EN standard ISO 29465, Thermal insulating products for building applications 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
16、squareness EN 824 ISO 29468, Thermal insulating products for building 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 Determin
17、ation of the apparent density EN 1602 ISO 29471, Thermal insulating 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 Determinati
18、on of dimensional stability under specified temperature and humidity 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 buildin
19、g applications Determination of tensile strength perpendicular to 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 w
20、ater absorption by partial immersion EN 1609 ISO 29768, Thermal insulating products for building applications Determination of linear dimensions of test specimens EN 12085 ISO 29771:2008(E) vi ISO 2008 All rights reservedISO 29769, Thermal insulating products for building applications Determination
21、of behaviour under point load EN 12430 ISO 29770, Thermal 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, Th
22、ermal insulation products for building applications 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
23、coat to the thermal insulation material EN 13494 ISO 29805, Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes EN 13496 This International Standard has been prepared for products used to insulate buildings, building equipment and in
24、dustrial installation, but it may also be applied for products used in other areas. INTERNATIONAL STANDARD ISO 29771:2008(E) ISO 2008 All rights reserved 1Thermal insulating materials for building applications Determination of organic content 1 Scope This International Standard specifies the equipme
25、nt and procedures for determining the organic content of thermal insulating materials. The method is aimed at determining the organic content for products that are inorganic, i.e. products containing a low percentage of organic compounds, either unfaced products or the insulating material of a faced
26、 product. This International Standard is not applicable for the determination of organic content in the presence of water of hydration and/or combined carbonate, sulfate, etc. This International Standard is not applicable for the determination of organic content of adhesives, facings and/or coatings
27、. NOTE This International Standard can be used to verify that a thermal insulating product complies with the requirements of EN 13501-1 for classification as Euroclass A1 without testing. 2 Terms and definitions For the purposes of this document, the following term and definition apply. 2.1 organic
28、content w octotal quantity of carbon compounds contained in a material or product NOTE The organic content in a product shall be expressed as mass percentage. 3 Principle The organic content is determined as the loss of mass of a previously dried test specimen heated at a specific temperature for a
29、specific time period. 4 Apparatus Any test equipment which provides the same result with at least the same accuracy may be used. 4.1 Balance, capable of determining the mass of a test specimen to 0,001 g. 4.2 Oven, temperature-controlled, ventilated, capable of maintaining a temperature of (105 5) C
30、 or a temperature specified in the relevant product standard or any other international or European technical specification. ISO 29771:2008(E) 2 ISO 2008 All rights reserved4.3 Furnace, temperature-controlled, ventilated, capable of maintaining a temperature of (500 20) C or a temperature as specifi
31、ed in the relevant product standard or any other international or European technical specification. 4.4 Test specimen container, of an inert material, which shall not change mass during the test, e.g. porcelain crucible or aluminium tray, that has been preheated at least once at 500 C for 2 h before
32、 being used. 4.5 Desiccator, capable of keeping the test specimen dry during cool-down. 5 Test specimens 5.1 Dimensions of test specimens The thickness of the test specimens shall be the original product thickness. In the case of faced and/or coated products, all facings and/or coatings, including a
33、dhesives, shall be removed. A test specimen shall consist of at least eight separate pieces taken from different positions evenly distributed over the total surface of a full-size product. This can be accomplished by the use of a cork borer with a diameter of e.g. 21 mm or 25 mm; removing material t
34、hroughout the full product thickness. The mass of each test specimen shall be between 10 g and 200 g. 5.2 Number of test specimens The number of test specimens shall be as specified in the relevant product standard. If the number is not specified, then at least five test specimens shall be used. In
35、the absence of a product standard or any other international or European technical specification, the number of test specimens may be agreed between parties. 5.3 Preparation of test specimens The test specimens shall be cut so that they do not include product edges. Each test specimen shall be place
36、d in a separate test specimen container of known mass. 5.4 Conditioning of test specimens The test specimens shall be dried in the ventilated oven at the temperature of (105 5) C or a temperature as specified in the relevant product standard or any other international or European technical specifica
37、tion, normally for 2 h and cooled down in the desiccator to (23 5) C until constant mass is obtained. Constant mass shall be considered as that mass recorded when the change in mass between two consecutive weighings, at a time interval of at least 1 h, is less than 0,05 % mass fraction. Once the con
38、ditioning time has been established for a product, it is not necessary to repeat the consecutive weighings. In tropical countries, 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. 6 Procedu
39、re 6.1 Test conditions The test specimen shall be placed in a previously weighed empty container with the mass, m 1 , and shall be dried and cooled down as specified in 5.4 before the test is carried out. In tropical countries, different conditioning and testing conditions can be relevant. In this c
40、ase, the conditions shall be 27 C and 65 % RH and be stated clearly in the test report. ISO 29771:2008(E) ISO 2008 All rights reserved 36.2 Test procedure Remove the container with the test specimen inside from the desiccator and weigh it within 1 min to determine the combined mass, m 2 . Place the
41、container with the test specimen inside in the furnace at a temperature of (500 20) C or at the temperature specified in the relevant product standard or any other international or European technical specification. Remove the container with the test specimen inside from the furnace when it is consid
42、ered that all organic compounds have burned off. This normally takes at least 2 h. Place the container with the test specimen inside in the desiccator and allow it to cool down to (23 5) C. Weigh the container with the test specimen inside within 1 min after removal from the dessicator. Return the c
43、ontainer with the test specimen inside to the furnace at a temperature of (500 20) C or at the temperature specified in the relevant product standard or any other international or European technical specification for at least 30 min. Remove the container from the furnace and place it in the desiccat
44、or and allow it to cool down to (23 5) C. Repeat the procedure described in the previous paragraph until constant mass, as defined in 5.4, is obtained. Record this as m 3 . The container with the test specimen inside shall be stored in the desiccator between weighings. Repeat the procedure for the o
45、ther test specimens. 7 Calculation and expression of results Calculate the organic content, w oc , expressed as a percent mass fraction, for each test specimen using Equation (1): () () 23 oc 21 100 mm w mm = (1) where m 1is the mass of the test specimen container, expressed in milligrams; m 2is the
46、 mass of the test specimen container with the dried test specimen inside, expressed in milligrams; m 3is the mass of the test specimen container with the dried and heated test specimen inside, expressed in milligrams. The result shall be the mean value of the individual values. It shall be rounded t
47、o the nearest mass fraction of 0,01 %. 8 Accuracy of measurement NOTE It has not been possible to include a statement on the accuracy of the measurements in this edition of this International Standard, but it is intended to include such a statement when this International Standard is next revised. I
48、SO 29771:2008(E) 4 ISO 2008 All rights reserved9 Test report The test report shall include the following information: a) reference to this International Standard; b) product identification: 1) product name, factory, manufacturer or supplier, 2) production code number, 3) type of product, 4) packagin
49、g, 5) the 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 history and sampling, e.g. who sampled and where, 2) conditioning, 3) any deviation from Clauses 5 and 6, 4) conditioning and testing conditions in tropical countries, if applicable, 5) date of testing, 6) number of test specimens, 7) general information relating to the test, including the drying time
