1、 Reference number ISO 12623:2011(E) ISO 2011INTERNATIONAL STANDARD ISO 12623 First edition 2011-01-15 Thermal insulating products for building equipment and industrial installations Determination of short-term water absorption by partial immersion of preformed pipe insulation Produits isolants therm
2、iques pour les quipements des btiments et les installations industrielles Dtermination de labsorption deau court terme par immersion partielle des coquilles isolantes prformes ISO 12623:2011(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, t
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7、 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 2011 All rights reservedISO 12623:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Principle .1 4 Apparatus.2 5 Test specimens3 5.
8、1 Dimensions of test specimens.3 5.2 Preparation of test specimens .4 5.3 Number of test specimens .4 5.4 Conditioning of test specimens.4 6 Procedure.4 6.1 Test conditions4 6.2 Test procedure.4 7 Calculation and expression of results 5 8 Accuracy of measurement .6 9 Test report6 Annex A (informativ
9、e) Table with examples of calculation of the length of test specimens8 ISO 12623:2011(E) iv ISO 2011 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 St
10、andards is normally carried 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
11、 take part in the work. ISO 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 committee
12、s is to prepare International 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 possib
13、ility 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 such patent rights. ISO 12623 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee S
14、C 1, Test and measurement methods. ISO 12623 includes the original EN 13472 prepared by Technical Committee CEN/TC 88 Thermal insulating materials and products. However, Subclause 5.4, “conditioning of test specimen”, Subclause 6.1, “test conditions”, and Clause 9, “test report” have been modified t
15、o reflect conditions for tropical countries. 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 13472 supports a series of product standards for thermal insulat
16、ing 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 constructive products (Directive 89/106/EEC) through the consideration of the essential requirements. ISO 12
17、623:2011(E) ISO 2011 All rights reserved vThis 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 is comprised of the following group of International Standards: ISO standard Tit
18、le Respective EN standard ISO 12623 Thermal insulating products for building equipment and industrial installations Determination of short-term water absorption by partial immersion of preformed pipe insulation EN 13472 ISO 12624 Thermal insulation products Determination of trace quantities of water
19、 soluble chloride, fluoride, 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
20、equipment and industrial installations Determination of water vapour transmission properties of preformed pipe insulation EN 13469 A further series of existing European Standards on test methods was adopted by ISO. This “package” of standards comprises the following group of interrelated standards:
21、ISO standard Title Respective 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 appl
22、ications Determination of 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 buildin
23、g applications Determination of the apparent density EN 1602 ISO 29471 Thermal insulating products for building applications Determination of dimensional stability under constant normal laboratory conditions (23 degrees C/50 % relative humidity) EN 1603 ISO 29472 Thermal insulating products for buil
24、ding applications Determination 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 insu
25、lating products for building 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 Deter
26、mination of short-term water absorption by partial immersion EN 1609 ISO 12623:2011(E) vi ISO 2011 All rights reservedISO standard Title Respective EN standard ISO 29768 Thermal insulating products for building applications Determination of linear dimensions of test specimens EN 12085 ISO 29769 Ther
27、mal insulating products for building applications Determination 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 applic
28、ations Determination of organic content EN 13820 ISO 29803 Thermal 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 o
29、f 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 Determination of the mechanical properties of glass fibre meshes EN 13496 The Application of Agreement on technical cooperation
30、 between ISO and CEN (Vienna Agreement), Modes 1, 2, 4 and 5, was not approved by CEN/TC 88 and the necessity not seen by its stakeholders. INTERNATIONAL STANDARD ISO 12623:2011(E) ISO 2011 All rights reserved 1Thermal insulating products for building equipment and industrial installations Determina
31、tion of short-term water absorption by partial immersion of preformed pipe insulation 1 Scope This International Standard specifies the equipment and procedures for determining the short-term water absorption of preformed pipe insulation by partial immersion in water. It is applicable to thermal ins
32、ulating products. NOTE It is intended to simulate the water absorption caused by exposure to rain for 24 h during product installation. If the pipe insulation is cut from a flat product, then the short-term water absorption by partial immersion can be obtained from tests carried out on the flat prod
33、uct with similar properties in accordance with EN 1609, provided that the test is carried out in the direction giving the highest water uptake. This International Standard has been prepared for products used to insulate building equipment and industrial installations, but it may also be applied to p
34、roducts used in other areas. No existing International Standards supersede this one. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of t
35、he referenced document (including any amendments) applies. ISO 12628, Thermal insulating products for building equipment and industrial installations Determination of dimensions, squareness and linearity of preformed pipe insulation 3 Principle The short-term water absorption by partial immersion is
36、 determined by measuring the change in mass of a test specimen, the lower part of which is in contact with water for a period of 24 h. The excess water adhering to the surface and not absorbed by the test specimen is drained according to Method A (6.2.2) or calculated, according to Method B (6.2.3),
37、 from the initial water uptake. ISO 12623:2011(E) 2 ISO 2011 All rights reserved4 Apparatus 4.1 Balance, capable of determining the mass of a test specimen to an accuracy of 0,1 g or 0,5 %, whichever is less. 4.2 Water tank, with a device for keeping the water level constant to within 2 mm, and a de
38、vice to keep the test specimen in the required position during the test see examples in Figures 1a) and 1b). The supporting device shall be such that the test specimen contact area with water shall be at least 85 % and such that the original form of the test specimen is maintained. 4.3 Tap water, ad
39、justed to a temperature of (23 5) C. In tropical countries, different conditioning and testing conditions can be relevant. In this case, the temperature of the water shall be adjusted to (27 5) C and be stated clearly in the test report. 4.4 Equipment, for drainage see examples in Figures 2a) and 2b
40、). Dimensions in millimetres a) Example of D ou 300 mm Figure 1 (continued) ISO 12623:2011(E) ISO 2011 All rights reserved 3b) Example of D o 300 mm Key 1 water tank 2 load to keep the test specimen in position 3 stainless steel mesh 4 test specimen Figure 1 Examples of partial immersion test device
41、s a) b) Key 1 perforated stainless steel 2 test specimen 3 stainless steel mesh Figure 2 Examples of equipment for drainage 5 Test specimens 5.1 Dimensions of test specimens Test specimens shall be prepared from the product without reducing the original thickness. In the event that the outside diame
42、ter of the product is u 300 mm, the test specimen shall have one face with an area equal to the full cross-sectional area of the product or half the original cross-sectional area. For products with outside diameters 300 mm, the face shall be a segment of the cross-section with an outside chord lengt
43、h of (300 10) mm. ISO 12623:2011(E) 4 ISO 2011 All rights reservedThe length of the test specimen shall be adjusted so that the area of the immersed cylindrical surface will be (40 000 400) mm 2 . 5.2 Preparation of test specimens The test specimens shall be cut so that they do not include product e
44、nds. The test specimens shall be prepared by methods that do not change the original structure of the product. Any skins, facings and/or coatings shall be retained. NOTE Special methods of preparation, when needed, are specified in the relevant product standard. For products with a thickness 25 mm,
45、the ends shall be closed to avoid water pickup on the inner main surface of the test specimen (e.g. by use of glued aluminium foil on the ends). 5.3 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 l
46、east three test specimens shall be used. NOTE In the absence of a product standard or any other European technical specification, the number of test specimens can be agreed between parties. 5.4 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case of
47、 dispute they shall be stored at (23 2) C and (50 5) % RH (relative humidity) for the time specified in the relevant product standard. In tropical countries, different conditioning and testing conditions can be relevant. In this case, the conditions shall be (27 5) C and (65 5) % RH, and shall be st
48、ated clearly in the test report. 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) % RH. In tropical countries, different conditioning and testing conditions can be relevant. In this case, the conditions shall
49、 be (27 2) C and (65 5) % RH. 6.2 Test procedure 6.2.1 General The choice of Method A or B shall be as specified in the relevant product standard. NOTE In the absence of a product standard or any other European technical specification, the choice of Method A or B can be agreed between parties. The dimensions of the test specimens shall be measured in accordance with ISO 12628. ISO 12623:2011(E) ISO 2011 All rights reserved 56.2.2 Meth
