1、 - BRITISH STANDARD Thermal insulating for building products O equipment and industrial installations - Determination of the apparent density of preformed pipe insulation The European Standard EN 13470:ZOOl has the status of a British Standard ICs 91.100.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT A
2、S PERMITTED BY COPYRIGHT LAW BS EN 13470:2001 BS EN 13470:ZOOl National foreword This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on O9 November 20
3、01 This British Standard is the official English language version of EN 13470:2001. This British Standard, together with BS EN 13467:2001, BS EN 13468:2001, BS EN 13469:2001, BS EN 13471:2001 and BS EN 13472:2001 partially supersedes BS 2972: 1989. The UK participation in its preparation was entrust
4、ed by Technical Committee RHE/9, Thermal insulating materials, to Subcommittee RHE/9/4, Nomenclature and specifications; which has the responsibility to: - - aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for chan
5、ge, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented OR this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international
6、or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all t
7、he necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title p
8、age, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication O BSI O9 November 2001 Amd. No. IDate ICamments ISBN O 580 38638 4 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13470 Septemb
9、er 2001 ICs 91.100.60 English version Thermal insulating products for building equipment and industrial installations - Determination of the apparent density of preformed pipe insulation Produits isolants thermiques pour lquipement du btiment et les installations industrielles - Dtermination de la m
10、asse volumique apparente des coquilles isolantes prformes Wrmedmmstoffe fr die Haustechnik und fr betriebstechnische Anlagen - Bestimmung der Rohdichte von vorgeformten Rohrdmmstoffen This European Standard was approved by CEN on 18 August 2001. CEN members are bound to comply with the CENICENELEC I
11、nternal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Upto-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN membe
12、r. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members ar
13、e the national standards bodies of Austria, Belgium, Czech Republic. Denmark, Finland, France, Germany, Greece, Iceland. Ireland, Italy. Luxembourg, Netherlands. Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN C-OMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FOR NORMUNG C
14、OMITE EUROPEEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13470:2001 E EN 13470:2001 (E) Contents Pay Foreword . 3 Scope . 4 Normative references .
15、 4 Terms and definitions 4 Principle . 4 Apparatus 4 Test specimens . 4 Procedure 5 Calculation and expression of results 6 Accuracy of measurement . 7 IO Test report . 7 2 EN 13470:2001 (E) Foreword This European Standard has been prepared by Technical Committee CENTTC 88 “Thermal insulating materi
16、als and products“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2002, and conflicting national standards shall be withdrawn at the latest by March
17、 2002. This European Standard is one of a series of standards which specify test methods for determining dimensions and properties of thermal insulating materials and products. It supports a series of product standards for thermal insulating materials and products which derive from the Council Direc
18、tive of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products (Directive 89/1 OG/EEC) through the consideration of the essential requirements. This European Standard has been prepared for products used to insul
19、ate building equipment and industrial installations, but it may also be applied to products used in other areas. No existing European Standard is superseded. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
20、European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 3 EN 13470:2001 (E) 1 Scope This European Standard specifies the equipment and proced
21、ures for determining the apparent overall density and the apparent core density under reference conditions. It is applicable to full size thermal insulating products and test specimens of preformed pipe insulation. 2 Normative references This European Standard incorporates, by dated or undated refer
22、ence, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorpor
23、ated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 1 3467, Thermal insulating products for building equipment and industrial installations - Determination of dimensions, squareness and linearity of preforme
24、d pipe insulation. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 apparent overall density, pa the mass per unit volume of a product, including all surface skins formed during production, but excluding any facings andlor coatings 3.
25、2 apparent core density, fi the mass per unit volume of the core of a product after all surface skins formed during production and all facings andlor coatings have been removed 4 Principle The density is determined as the quotient of the mass and the volume of the test specimen. 5 Apparatus 5.1 Bala
26、nce capable of determining the mass of a test specimen to an accuracy of 0,5 YO. 5.2 Equipment for the determination of the dimensions of preformed pipe insulation (see 7.2). 6 Test specimens 6.1 Dimensions of test specimens The test specimens shall be full size products or parts of them, or test sp
27、ecimens used for other tests. When the apparent overall density is being determined using test specimens cut from a product with surface skins formed during production, the ratio of the area of the surface skin to the total volume shall be the same for the test specimen as for the product. NOTE The
28、size of a test Specimen should preferably be as large as possible, commensurate with the apparatus 4 EN 13470:2001 (E) available and with the shape of the original product. The size of the test specimens may also be specified in other test methods. 6.2 Number of test specimens The number of test spe
29、cimens for full size products shall be as specified in the relevant product standard. If test specimens from other tests are used, the number shall be as specified in the test method. If the number is not specified, then at least three test specimens shall be used. NOTE In the absence of a product s
30、tandard or any other European technical specification the number of test speu- mens may be agreed between parties. 6.3 Preparation of test specimens The test specimens shall be cut by methods that do not change the original structure of the product. The location from which the test specimens are tak
31、en shall be such that the density obtained is representative of the density of the product. For determining the apparent overall density, any facings and/or coatings shall be removed from the product. For determining the apparent core density, any surface skins formed during production and any facin
32、gs andlor coatings shall be removed from the product. When it is not possible to remove the facings and/or coatings without influencing the apparent density of the product, the mass of the facings andlor coatings shall be deducted by calculation. NOTE Special methods of preparation, when needed, are
33、 given in the relevant product standard. 6.4 Conditioning of test specimens The test specimens shall be conditioned at (23 f 2) OC and (50 I 5) % relative humidity until constant mass is achieved. The time for conditioning and the required accuracy of the constant mass measurements shall be given in
34、 the relevant product standard. NOTE 1 If it can be shown that temperature and humidity has negligible influence on the determination of the density, then the conditioning can be carried out at (23 f 5) OC. NOTE 2 The conditioning time can be shortened by pre-drying the test specimen in a ventilated
35、 drying chamber at a prescribed temperature. Appropriate procedures may be given in the relevant product standard. 7 Procedure 7.1 Test conditions The test shall be carried out at (23 12) OC and (50 f 5) % relative humidity. NOTE If it can be shown that temperature and humidity has negligible influe
36、nce on the determination of the density, the testing can be carried out at (23 f 5) “C. 7.2 Test procedure Measure the linear dimensions of full size products and test specimens in accordance with EN 13467. Calculate the volumes of the test specimens from these measurements. Weigh each test specimen
37、 to an accuracy of 0,5 % and record its mass in kilogrammes. If the facings and/or coatings are retained, the mass of the product shall be calculated by deducting the mass of the facings andlor coatings and adhesives, if any, from the overall mass. 5 EN 13470:2001 (E) If a higher accuracyfor dimensi
38、ons of full size products is needed, it shall be specified in the relevant product standard. 8 Calculation and expression of results Calculate the apparent overall density, pa, or apparent core density, A, in kilogrammes per cubic metre using the equation: m P=v where: rn is the mass of the test spe
39、cimen, in kilogrammes; Vis the volume of the test specimen, in cubic metres. The calculation of Vfor a full size pipe insulation is made as follows: ?r Y = ix -X (D: - 02) 4 where: lis the length of the test specimen, in metres; 0, is the outside diameter, in metres; 4 is the inside diameter, in met
40、res. p(pa or pc) for the test specimen is given to three significant figures. Calculate the arithmetic mean value of the density from the results for all test specimens and express the value to three significant figures. NOTE For some products the determination of the volume used for the calculation
41、 of the density of test specimens, with an irregular or complicated shape, can be made measuring the quantity of displaced water during the complete immersion in water at (23 f 2) OC. In this case the mass should be determined before the volume determination. 6 EN 13470:2001 (E) 9 Accuracy of measur
42、ement NOTE It has not been possible to include a statement on the accuracy of the method in this edition of the standard, but it is intended to include such a statement when the standard is next revised. 10 Testreport The test report shall include the following information: a) reference to this Euro
43、pean Standard; b) product identification 1) product name, factory, manufacturer, or supplier; 2) production code number; 3) type of product; 4) packaging; 5) the form in which the product arrived at the laboratory; 6) other information as appropriate, e.g. nominal dimensions; c) test procedure 1) pr
44、e-test history and sampling, e.g. who sampled and where; 2) conditioning; 3) drying conditions; 4) presence of facings, the mass of the facing and the method of removal, if necessary; 5) presence of surface skins and the method of removal, if necessary; 6) presence of densification, stratification o
45、r defects of the test specimens; 7) if any deviation from clauses 6 and 7; 8) date of testing; 9) general information relating to the test; IO) events which may have affected the results; NOTE Information about the apparatus and identity of the technician should be available in the laboratory but it
46、 need not be recorded in the report. d) results all individual values and the mean value. 7 BS EN 134 70:ZOO 1 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution IS1 is the independent national body responsible for preparing Iritish Standards. It presents the UK view on sta
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