1、May 2015 Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91
2、.100.60!%BZ|“2315589www.din.deDDIN EN 16012Thermal insulation for buildings Reflective insulation products Determination of the declared thermal performance;English version EN 16012:2012+A1:2015,English translation of DIN EN 16012:2015-05Wrmedmmstoffe fr Gebude Reflektierende Wrmedmm-Produkte Bestim
3、mung der Nennwerte der wrmetechnischen Eigenschaften;Englische Fassung EN 16012:2012+A1:2015,Englische bersetzung von DIN EN 16012:2015-05Isolation thermique des btiments Produits disolation rflchissants Dtermination de la performance thermique dclare;Version anglaise EN 16012:2012+A1:2015,Traductio
4、n anglaise de DIN EN 16012:2015-05SupersedesDIN EN 16012:2012-04www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 34 pages 04.15 DIN EN 16012:2015-05 2 A comma is used as the decimal marker. National foreword This document (EN 16012:2012+
5、A1:2015) has been prepared by Technical Committee CEN/TC 89 “Sustainability of construction works” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Working Committee NA 0
6、05-56-98 AA Wrme-technisches Messen (SpA zu CEN/TC 89/WG 11, WG 12 (teilweise) und WG 13). Amendments This standard differs from DIN EN 16012:2012-04 as follows: a) Subclause 5.3.1 “Size and number of specimens” has been added; b) Clause 5 “Methods of assessment” has been revised in form and substan
7、ce; c) the standard has been editorially revised. Previous editions DIN EN 16012: 2012-04 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16012:2012+A1 February 2015 ICS 91.100.60 Supersedes EN 16012:2012English Version Thermal insulation for buildings - Reflective insulation products -Determin
8、ation of the declared thermal performance Isolation thermique des btiments - Produits disolation rflchissants - Dtermination de la performance thermique dclare Wrmedmmstoffe fr Gebude - Reflektierende Wrmedmm-Produkte - Bestimmung der Nennwerte der wrmetechnischen Eigenschaften This European Standar
9、d was approved by CEN on 23 December 2011 and includes Amendment 1 approved by CEN on 29 November 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
10、 Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by tr
11、anslation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Fin
12、land, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZAT
13、ION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16012:2012+A1:2015 EEN 16012:2012+A1:2015 (E) 2
14、 Contents Page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms, definitions, symbols and units 7 3.1 Terms and definitions . 7 3.2 Symbols and units . 7 4 Description of product types 8 4.1 Product classification . 8 4.2 Product Type 1 . 8 4.3 Product Type 2 . 9 4.4 Product Ty
15、pe 3 . 9 4.5 Product Type 4 . 10 5 Methods of assessment 11 5.1 General 11 5.2 Thickness measurement . 11 5.3 !Test specimens“ . 11 5.4 Determination of thermal resistance outline . 11 5.5 Determination of core thermal resistance of Product Type 1 . 12 5.6 Determination of core thermal resistance of
16、 Product Type 2 . 13 5.7 Determination of core thermal resistance of Product Type 3 (METHOD C) 13 5.8 Determination of the thermal performance of Product Type 4 . 18 5.9 Emissivity . 19 6 Uncertainty . 20 6.1 General 20 6.2 Thickness measurements . 20 6.3 Use of surface thermocouples on thin samples
17、 in a guarded hot plate or in heat flow meter measurement . 20 6.4 Use of dummy insulation specimens 20 6.5 Derivation of the core resistance of a Type 3 Product from hot box measurements. 20 7 Expression of results 21 7.1 Results derived from hot plate and emissivity measurements (Products Type 1 h
18、igh emissive standard: black light trap surface. Calibration standards shall be certified by the manufacturer of the apparatus or by an independent institute, accompanied by a certificate showing the measured emissivity. The calibration standards shall be recertified (or replaced by new certified st
19、andards) at least every two years. DINEN 16012:2015-05EN 16012:2012+A1:2015 (E) 28 D.4 Calculation of the emissivity The emissivity is determined from comparing the measured result for the specimen with the two calibration standards. With the sensor signals (U, UHand UL) and the known emissivity of
20、calibration standards (Land H), the emissivity, , of the specimen shall be calculated by: = H- (H- L) (UH- U) / (UH- UL) (D.1) NOTE The measurement range of the apparatus is limited to values between those of the two calibration standards used, hence within the emissivity range of 0,020,94. However,
21、 there are practical limits to the measurement of very low values of emissivity, irrespective of the method used. Errors increase significantly below emissivity 0,05. D.5 Sampling and preparation of the test specimens D.5.1 Sampling A sample of an undamaged reflective insulation product shall be sel
22、ected at random from a batch of production material or from product placed on the market. D.5.2 Dimensions and numbers of specimens !A minimum of three specimens should be taken from the sample to be representative of the length and width of the product to include a representative area of any printi
23、ng or perforation where relevant. If the faces of the product differ then a minimum of three specimens shall be taken from each face. The specimen size should be adapted to the size of the specimen holder and to the fixing system of the specimen holder (see D.6), but shall be at least 250 mm by 250
24、mm.“ D.5.3 Conditioning of specimens for ageing The specimens shall be exposed in a climatic chamber to 90 % relative humidity and 70 C temperature for a period of 28 days. The edges of the specimens shall be adequately protected by securing self-adhesive aluminium foil tape around each edge of the
25、specimen from the upper surface to the lower surface, to prevent ingress of moisture through the cut edge. After the conditioning process, the specimens shall then be allowed to stabilize for a minimum of two hours at a temperature of (23 2) C and relative humidity of (50 20) %. D.6 Procedure for me
26、asurement of specimens The apparatus shall be switched on at least 2 hours before calibration and before commencing measurements. The apparatus shall be installed in a fixed position and shall not be moved during measurement. Special precautions should be taken to ensure that the calibration standar
27、ds, the specimens and the apparatus are brought to equilibrium in the same standard climatic conditions. Air currents and draughts in the measuring area shall be avoided. The specimen shall be brought up to the apparatus in a vertical orientation, pressed against the spacers around the measuring win
28、dow of the apparatus and the apparatus shall be activated to begin measurement. The emissivity shall be measured in five positions on each specimen. In order to avoid changes in the specimen temperature during the measurement, the time that the specimen is left in the measuring position shall be red
29、uced to a minimum. Between specimen positioning and start of measurement, no more than 1 second shall pass. If this speed of measurement is not achieved, or if the measurement is otherwise interrupted, or if the measurement on a specimen is to be repeated, the specimen should be withdrawn from the a
30、pparatus for the time it needs to cool down to laboratory temperature. Rapid movement of the specimen over the apparatus while measuring is possible, but coupling of the specimen to a massive aluminium block by heat conductance paste gives the most consistent results. The higher the emissivity and/or the lower the DINEN 16012:2015-05
