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1、BRITISH STANDARD BS EN 13521:2002 Footwear Test methods for uppers, lining and insocks Thermal insulation The European Standard EN 13521:2001 has the status of a British Standard ICS 61.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun,
2、 na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13521:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee o
3、n 24 January 2002 BSI 24 January 2002 ISBN 0 580 38930 8 National foreword This British Standard is the official English language version of EN 13521:2001. The UK participation in its preparation was entrusted to Technical Committee TCI/69, Footwear and leather, which has the responsibility to: A li
4、st of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Internatio
5、nal Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Briti
6、sh Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European deve
7、lopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments iss
8、ued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13521 November 2001 ICS 61.060 English version Footwear - Test methods for uppers, lining and in
9、socks - Thermal insulation Chaussures - Mthodes dessai des tiges, de la doublure et des premires de propret - Isolation thermique Schuhe - Prfverfahren fr Schfte, Futter und Deckbrandsohlen - Wrmedmmung This European Standard was approved by CEN on 4 October 2001. CEN members are bound to comply wit
10、h the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre
11、 or to any CEN member. 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 vers
12、ions. CEN members are 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 COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
13、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13521:2001 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24
14、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Apparatus and material.4 5Sampling and conditioning.6 6Test method6 6.1Principle6 6.2Procedure .6 7Expression of results 7 8Test report 8 Licensed Copy: s
15、heffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 3 Foreword This European Standard has been prepared by Technical Committee CEN/TC 309 “Footwear“, the secretariat of which is held by AENOR. This European Standard shall be given the status o
16、f a national standard, either by publication of an identical text or by endorsement, at the latest by May 2002, and conflicting national standards shall be withdrawn at the latest by May 2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following co
17、untries are bound to implement this 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. Licensed Copy: sheffieldun sheffieldun, na, Sun O
18、ct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 4 1 Scope This European Standard specifies a test method for determining the thermal conductivity of uppers, lining and insocks irrespective of the material, in order to assess the suitability for the end use. 2 Normative re
19、ferences This European Standard incorporates by dated or undated reference, 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
20、 these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 12222Footwear - Standard atmospheres for conditioning and testing of footwear and com
21、ponents for footwear. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 thermal insulation thermal conductivity of a material under static conditions 3.2 upper materials forming the outer surface of the footwear which is attached to th
22、e sole assembly and covers the upper dorsal surface of the foot. In the case of boots this also includes the outer face of the material covering the leg. Only the materials that are visible are included, no account should be taken of underlying materials 3.3 complete upper assembly finished upper, f
23、ully seamed, joined or laminated as appropriate, comprising the centre material and any lining(s) together with all components such as interlinings, adhesives, membranes, foams or reinforcements, but excluding toe puffs and stiffeners NOTEThe complete upper assembly can be flat, 2-dimensional or com
24、prise lasted upper in the final footwear. 4 Apparatus and material The following apparatus and material shall be used: 4.1“Lees disc” apparatus, see Figure 1, including the following: 4.1.1Cylindrical brass block, which will subsequently be referred to as block B1, with: 4.1.1.1Diameter of approxima
25、tely 75 mm which is known with an accuracy of 0,2 mm. 4.1.1.2Height of approximately 25 mm which is known with an accuracy of 0,2 mm. 4.1.1.3Hole of diameter 2 mm 0,1 mm drilled radially to its centre. 4.1.1.4Type K thermocouple inserted into the hole until its junction is at the bottom of the hole.
26、 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 5 4.1.1.5Remaining volume of the hole shall be filled with a high thermal conductivity compound with a thermal conductivity of better than 0,8 W/(m C), for example a metal ox
27、ide filled paste of the type used between high power semiconductor electronic devices and heat sinks. 4.1.2Circular electrical heater element which: 4.1.2.1Has a diameter the same as that of the blocks in 4.1.1, with a tolerance of 0,5 mm. 4.1.2.2Is capable of dissipating a minimum power density of
28、400 W/m2 from each of its circular faces. 4.1.2.3Has a cylindrical brass block and thermocouple of the same dimensions as block B1 bonded to both its top and bottom faces with a high thermal conductivity adhesive compound. These two blocks will subsequently be referred to as B2 and B3. 4.1.3A fourth
29、 cylindrical brass block fitted with a thermocouple as in 4.1.1 of the same diameter as block B1 but of height (8 2) mm. This is for measuring the ambient temperature of the surrounding atmosphere and will subsequently be referred to as block B4. 4.1.4A power supply unit connected to the heater elem
30、ent (4.1.2). The unit should be capable of supplying sufficient power to enable the heater element to dissipate a power density of 400 W/m2 from each of its circular faces. 4.1.5Means of measuring the power being supplied to the heater element to an accuracy of 4 mW. 4.1.6Means of mounting the heate
31、r and block assembly so that air can circulate freely around all the outside edges of the assembly. 4.1.7Device capable of measuring and displaying the temperatures of the thermocouples in the four brass cylindrical blocks to an accuracy of 0,2 C. 4.2Circular press knife or similar device for cuttin
32、g circular test specimens of the same diameter as the block B1, with a tolerance of 0,5 mm. 4.3Dial thickness gauge which applies a pressure of (2,0 0,2) kPa to the test specimen and is capable of measuring to the nearest 0,01 mm. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+0
33、0:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 6 Key 1Test specimen 2Block B1 3Temperature display 4Heater 5Block B2 6Switching device 7Block B3 8Block B4 Figure 1 Lees disc thermal conductivity apparatus 5 Sampling and conditioning 5.1Store the uncut sheet material in a conditioned standar
34、d atmosphere as specified in EN 12222 for at least 48 h prior to cutting test specimens. 5.2Cut two circular test specimens of the same diameter as the metal block B1, with a tolerance of 0,5 mm. NOTETest specimens can be taken either from materials likely to be used for uppers and linings or from m
35、ade-up uppers or finished footwear. Prepare test specimens from complete upper assemblies when the lining material is permanently attached to the upper material. 6 Test method 6.1 Principle A constant heat source is sandwiched between two identical metal cylinders which are mounted with their axes v
36、ertical. A test specimen is placed on the top surface of the upper cylinder and a third identical metal cylinder is placed on top of the test specimen so that all the cylinders and the test specimen are concentrically aligned. The heat source is switched on and the temperatures of the three blocks a
37、llowed to reach equilibrium. The thermal conductivity of the test specimen is then determined from the steady state temperatures of the three blocks, the exposed surface areas of the blocks and test specimen and the thickness of the test specimen. 6.2 Procedure 6.2.1Use the thickness gauge (4.3) to
38、measure the thickness S, in mm, at the centre of each test specimen and record these two values to the nearest 0,05 mm. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13521:2001 (E) 7 6.2.2Ensure that the heater assembly (4.1.2) is mount
39、ed vertically so that block B2 is above block B3, see Figure 1. Place the apparatus in a temperature controlled atmosphere as specified in EN 12222 and position it so that air can circulate freely around the assembly. 6.2.3Place one of the test specimens onto the upper surface of block B2 and carefu
40、lly rest the block B1 on top of the test specimen. The surface of the test specimen which will be nearest the foot shall be placed against block B2 so that it is closest to the heater element. Adjust the positions of the block B1 and the test specimen until they are both concentrically aligned with
41、the heater assembly (4.1.2). 6.2.4Switch on the power supply unit (4.1.4) and adjust until it is delivering sufficient power to heat the brass cylindrical blocks, B2 and B3, to a steady state temperature of 35 ?C 5 C. NOTETypically a current of 0,14 A at a voltage of 18 V is required to achieve a st
42、eady state temperature of 35 ?C ? 5 ?C. 6.2.5At regular intervals of approximately 30 min record the temperature of the four blocks B1, B2, B3 and B4 to the nearest 0,2 C. 6.2.6When three sets of successive readings are found to be within 0,2 C for each block then the test shall be terminated. Recor
43、d the temperatures, in C, of the four blocks as TE1, TE2, TE3 and TE4 respectively. Remove the test specimen and block B1 from the heater assembly (4.1.2) and repeat the procedure in 6.2.3 to 6.2.6 for the other test specimen. 7 Expression of results 7.1Calculate the exposed area, in square metres (
44、m2), of blocks B1, B2 and B3 using: Exposed area of block B1 = A1 = ? D ( 0,25 D) + H Exposed area of block B3 = A3 = ? D (0,25 D) + H Exposed area of block B2 = A2 = H ? D where A is the exposed area, in square metres (m2); D is the diameter of blocks as in 4.1.1.1 and 4.1.2.3, in metres (m); H is
45、the height of blocks as in 4.1.1.2, in metres (m). NOTEAll diameter and height measurements are converted from mm to m by dividing them by 1 000. 7.2For each test specimen calculate: 7.2.1Exposed area, in square metres (m2), of test specimen using: Exposed area of test specimen = As = S ? D where S
46、is the thickness of test specimen measured in 6.2.1, in metres (m); D is the diameter of test specimen (see 5.2), in metres (m). 7.2.2Power, in watts, supplied to heater using: Power supplied = P = V I Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:36:24 GMT+00:00 2006, Uncontrolled Copy,
47、 (c) BSI EN 13521:2001 (E) 8 where V is the voltage supplied to heater, in volts (V); I is the current supplied to the heater, in amperes (A). 7.2.3The temperatures, in ?C, of blocks B1, B2, and B3 above ambient as: T1 = TE1 - TE4 T2 = TE2 - TE4 T3 = TE3 - TE4 7.2.4The average temperature, in ?C, of
48、 the test specimen, Ts, where: Ts = 0,5 ( T1 + T2 ) 7.2.5The thermal conductivity of the test specimen, K, in watts per metre per degree Celsius (W/m C ) using: K = P S (As Ts + 2 A1 T1) / (A1 T1 + As Ts + A2 T2 + A3 T3) (0,5 ? D2 (T2 - T1) 7.3Calculate the arithmetic mean of the two values of therm
49、al conductivity, Ka, to three significant figures. 7.4Calculate the average thermal resistance of the test specimens, R, in square metres degree Celsius per watt (m2 C/W) from the arithmetic mean of the thermal conductivities using the equation: Thermal resistance = Sa / Ka where Sa is the arithmetic mean thickness of the two specimens, in metres (m); Ka is the arithmetic mean thermal conductivity, in watts per metre per degree Celsius (W/m C). 8 Test report The te
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