1、 Reference number ISO 29805:2009(E) ISO 2009INTERNATIONAL STANDARD ISO 29805 First edition 2009-10-15 Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes Produits isolants thermiques destins aux applications du btiment Dtermination d
2、es caractristiques mcaniques des treillis de fibres de verre ISO 29805:2009(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 licensed to a
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7、SO 2009 All rights reservedISO 29805:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Terms, definitions, symbols and units1 3.1 Terms and definitions .1 3.2 Symbols and units.2 4 Principle2 5 Apparatus.2 6 Test specimens2 6.1 Number of test specim
8、ens2 6.2 Dimensions of the test specimens 2 6.3 Preparation of the test specimens.3 6.4 Conditioning of the test specimens 3 7 Procedure.4 7.1 Test conditions 4 7.2 Attachment of the test specimens in the tensile testing machine .4 7.3 Test procedure.4 8 Calculation and expression of results 4 9 Acc
9、uracy of measurement5 10 Test report5 ISO 29805:2009(E) iv ISO 2009 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 t
10、hrough 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 colla
11、borates 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 Sta
12、ndards. 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 o
13、f this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 29805 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods
14、. ISO 29805 is based on EN 13496:2002, prepared by Technical Committee CEN/TC 88 Thermal insulating materials and products. However 6.4 conditioning of the test specimens and storage under ambient conditions, 7.1 test conditions, and Clause 10 test report, have been modified to reflect the condition
15、s for tropical countries. Other modifications were made in 3.1.1, 5.3, 6.4.2 and Clause 8. ISO 29805:2009(E) ISO 2009 All rights reserved vThis International Standard is based on EN 13496:2002 prepared by Technical Committee CEN/TC 88 Thermal insulating materials and products, which has been amended
16、 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, based on existing European Standards, that are being adopted by ISO. This “package” of standards includes the followin
17、g group of interrelated documents. International Standard Title Respective EN standard 12968 Thermal insulation products for building applications Determination of the pull-off resistance of external thermal insulation composite systems (ETICS) (foam block test) EN 13495 29465 Thermal insulating pro
18、ducts 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 Thermal insulating products for
19、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 29471 Thermal insulating products
20、 for building applications Determination of dimensional stability under constant normal laboratory conditions (23C/50 % relative humidity) EN 1603 29472 Thermal insulating products for building applications Determination of dimensional stability under specified temperature and humidity conditions EN
21、 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 perpendicular to faces EN 1607 29766 Therma
22、l 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 insulating products for building application
23、s 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 thickness for floating floor insulating produc
24、ts EN 12431 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 impact of external thermal insulation composite systems (ETICS) EN 13497 29804 Thermal ins
25、ulation 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 building applications Determination of the mechanical properties of glass fibre meshes EN 13496
26、 INTERNATIONAL STANDARD ISO 29805:2009(E) ISO 2009 All rights reserved 1Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes 1 Scope This International Standard specifies equipment and procedures for determining the tensile strength a
27、nd elongation of glass fibre meshes, which are used for the reinforcement of the base coat in External Thermal Insulation Composite Systems (ETICS). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editio
28、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 29765, Thermal insulating products for building applications Determination of tensile strength perpendicular to faces EN 13499, Thermal insulation products for buildings Ext
29、ernal thermal insulation composite systems (ETICS) based on expanded polystyrene Specification ISO 9229, Thermal insulation Vocabulary ISO 1887, Textile glass Determination of combustible-matter content 3 Terms, definitions, symbols and units 3.1 Terms and definitions For the purposes of this docume
30、nt, the terms and definitions given in ISO 9229 and EN 13499 and the following apply. 3.1.1 elongation of glass fibre mesh Fquotient of the change in length, l F l 0 , and the initial length, before failure, of the test specimen between the clamps at the failure, l 03.1.2 tensile strength of glass f
31、ibre mesh strength of the test specimen at failure relative to the width of the test specimen ISO 29805:2009(E) 2 ISO 2009 All rights reserved3.2 Symbols and units F Fis the force at failure, in N; l 0is the distance between the clamps, in mm; l Fis the distance between the clamps at failure, in mm;
32、 w is the width of the test specimen, in mm; Fis the tensile strength of the test specimen in relation to the width of the test specimen, in N/mm; Fis the elongation at failure, in mm/mm. 4 Principle The tensile strength and the elongation of glass fibre meshes are determined at failure using a tens
33、ile testing machine. 5 Apparatus 5.1 Tensile testing machine, appropriate for the range of force and displacement involved, capable of having a constant crosshead speed adjusted to (50 5) mm/min. It shall be capable of measuring the force and elongation to an error limit of at least 1 % (in accordan
34、ce with ISO 29765). 5.2 Clamps, of the tensile testing machine, coated with a material to ensure attachment without slippage of the test specimen, such as rubber, and shall fasten the test specimen across its whole width. The clamps shall be sufficiently rigid to resist deformation during the test.
35、5.3 Container, wide and deep enough so that the test specimens can be immersed completely in an alkaline test solution. This can be a cylindrical container, of volume (2,5 0,5) l, of height (48 1) cm, of internal diameter (8 0,5) cm, in which (2 0,1) l of the alkaline test solution is introduced. Th
36、e container shall be covered. The material of the container shall be resistant to the alkaline test solution (e.g. plastics or stainless steel). 6 Test specimens 6.1 Number of test specimens Seven test specimens shall be used in warp direction, stored under ambient conditions. Seven test specimens s
37、hall be used in warp direction, stored in aggressive medium. Seven test specimens shall be used in weft direction, stored under ambient conditions. Seven test specimens shall be used in weft direction, stored in aggressive medium. 6.2 Dimensions of the test specimens The tensile strength of the mesh
38、es are tested in both the warp and the weft directions. The test specimen shall contain a minimum number of five threads within the width. The ratio of the length between the clamps to the width of the test specimen shall be 4:1. The dimensions of the test specimens shall be a minimum of 300 mm 50 m
39、m. ISO 29805:2009(E) ISO 2009 All rights reserved 36.3 Preparation of the test specimens The test specimens shall be cut from the original packed product after removal of the first 5 m of the roll and at a distance of at least 100 mm from the edges. The test specimen shall be cut between the single
40、warp or weft threads. The number of threads in the warp or in the weft direction shall be the same for the seven test specimens. The number of threads shall be indicated in the test report. Test specimens shall not be bent or folded and shall be handled carefully during the whole test procedure. 6.4
41、 Conditioning of the test specimens 6.4.1 Storage under ambient conditions The test specimens shall be stored at (23 2) C and (50 5) % relative humidity for at least 24 h. In tropical countries, different conditioning and testing conditions might be relevant. In this case, the conditions shall be (2
42、7 2) C and (65 5) % relative humidity and be stated clearly in the test report. 6.4.2 Storage in aggressive medium The test specimens shall be stored in the following alkaline test solution for 28 days for a 3-ions test at (23 2) C. Concentrations in g/l distilled water: Ca(OH) 20,5 g at 96 % NaOH 1
43、 g at 97 % KOH 4 g at 85 % For the preparation of the alkaline test solution, the reagents shall be dissolved in distilled water in the given order above. For the storage of 30 g to 35 g glass fibre mesh, 1 l of the alkaline test solution is necessary. After 28 days of storage, the samples are rinse
44、d by immersion for 5 min in acid solution 5 ml HCl (35 % diluted) to 4 litres water and then placed successively in 3 baths of water (4 litres each). The samples are left for 5 min in each bath. They are subsequently dried at (23 2)C and (50 5) % relative humidity for 48 h. Users who do not have rea
45、gents in the indicated concentration shall correct for the difference in mass. For FPC, the storage of 24 h at (60 2)C may be used instead of the 28 days at (23 2)C. If the glass mesh to be tested is only used in a specified base coat, an aggressive medium consisting of a 20 % suspension of base coa
46、t in water at (60 2) C may be used. 6.4.3 Wash and drying procedure After storage in the aggressive medium, the test specimens shall be gently rinsed in running tap water at (20 5) C until the pH value at the surface of the specimens is less than 9, as measured with pH indicator paper. The test spec
47、imens shall be stored for 1 h in 0,5 % hydrochloric acid. After this storage, the test specimens shall be gently rinsed in running tap water at (20 5) C, without significant mechanical movement, until a pH value of 7 is measured carefully with pH indicator paper. The test specimens shall be dried fo
48、r 60 min at (60 2) C and afterwards stored for at least 24 h at (23 2) C and (50 5) % relative humidity before testing. ISO 29805:2009(E) 4 ISO 2009 All rights reserved7 Procedure 7.1 Test conditions The test shall be carried out at (23 2) C and (50 5) % relative humidity. In tropical countries, dif
49、ferent conditioning and testing conditions might be relevant. In this case, the conditions shall be (27 2) C and (65 5) % relative humidity and be stated clearly in the test report. 7.2 Attachment of the test specimens in the tensile testing machine The test specimens shall be attached between the two clamps, which are fastened in the tensile testing machine. A self-aligning attachment on the top clamp avoids uneven
