1、STD-BSI BS EN L2772-ENGL 2000 M Lb24bb9 0830235 O09 BRITISH STANDARD Footwear - Test methods for outsoles - Dimensional stability The European Standard EN 12772:1999 has the status of a British Standard ICs 61.060 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 12772:200
2、0 STDDBSI BS EN 12772-ENGL 2000 = I1624669 0830236 “45 m BS EN 12772:2000 been prepared under the direction of the Sector Committee for Matenais and Chemicals, was published under the authority of the Standards Committee and cornes into effect on 15 February ZOO0 Amd. No. O BSI 02-2000 ISBN O 580 35
3、617 5 National foreword Date Comments Tius British Standard is the official English language version of EN 12772:1999. It supersedes BS 5131-2.101991 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee TCV69, Footwear and leather, which has the responsibi
4、lity to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related intemational and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed them in the UK A list of organizat
5、ions represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement intemational or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International standards Co
6、rrespondence 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 conkact. Users of British standards are responsible for their correct application. Compliance with a British Standard does
7、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN titie page, pages 2 to 8, an inside back cover and a back cover. The BSI copynght notice displayed in this document indicates when the document was last issued.
8、 STD-BSI BS EN 12372-ENGL 2000 = 1624669 0830237 98L EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12772 Novem ber 1999 ICs 61 .O60 English version Footwear - Test methods for outsoles - Dimensional stability Chaussures - Mthodes dessai applicables aux semelles dusure - Stabilit dimensionnell
9、e Schuhwerk - Prfverfahren fr Laufsohlen - Mahaltigkeit This European Standard was approved by CEN on 17 September 1999. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this Europcan Standard the status of a national standard withou
10、t any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language mad
11、e by trmslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as tie official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,
12、Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FUR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretariat: rue de Stassatt, 36 8-1050 Brussels O 1999 CEN All rights of exploita
13、tion in any form and by any means reserved worldwide for CEN national Members. Ref No EN 12772.1999 E . STD-BSI BS EN 12772-ENGL 2000 W Lb24bb9 0830238 818 = Page 2 EN 12772: 1999 Contents Page Foreword . 1 Scope . 2 Normative references . 3 Definitions . 4 Apparatus and material 5 Sampling and cond
14、itioning . 6 Test method . 7 Expression of results 8 Test report OBSI 02-2000 STDmBSI BS EN 12772-ENGL 2000 1b24bb9 0830239 754 Page 3 EN 12772: 1999 Foreword This European Standard has been prepared by Technical Committee CENiTC 309, Footwear, the Secretariat of which is held by AENOR. This Europea
15、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2000, and conflicting national standards shall be withdrawn at the latest by May 2000. According to the CEWCENELEC Internal Regulations, the national standa
16、rds organizations of the following countries 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. OBSI 02-2000
17、 STDOBSI BS EN L2772-ENGL 2000 W Lb24669 0830240 47b Page 4 EN 12772:1999 1 Scope This standard specifies a method for determining the linear shrinkage after heating of test specimens prepared from outsoles. 2 Normative references This European Standard incorporates by dated or undated reference, pr
18、ovisions 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 incorporated in i
19、t by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 12222 Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear. prEN 13400:1998 Footwear - Sampling location of components for footwear IS0 464
20、8 Rubber, vulcanized - Determination of dimensions of test pieces and products for test purposes. 3 Definitions For the purposes of this standard the following definition applies: 3.1 dimensional stability the reduction in the distance between two reference points on a test piece before and after he
21、ating in air under specified conditions. This shrinkage is expressed as percentage of the initial distance 4 Apparatus and material The following apparatus and material shall be used: 4.1 Steel rule, marked in millimetres. 4.2 Templates and scalpel or other sharp knife, to cut two reference marks in
22、 the test specimen either 1 O0 mm or 50 mm apart. 4.3 Oven, for heating the test specimens to 70 OC i 2 OC and thermostatically controlled so that they are kept within 2 OC of the required temperature during the heating period. OBSI 02-2000 STD-BSI BS EN 12772-ENGL 2000 Lb24669 0830243 302 = Page 5
23、EN 12772: I999 4.4 Device capable of measuring the distance between two cuts, 50 mm apart or 100 mm apart, on a flat surface, to an accuracy of * 0,2 mm. This may consist of either: a) a steel rule, marked in millimetres as in 4.1, together with a x5 magnifying glass; or b) a travelling microscope o
24、r similar optical device with scale. 4.5 Thickness gauge Thickness gauge, standing on a firm base and loaded with a dead weight such that the presser foot applies a pressure of 10 kPa * 3 kPa. The gauge has a presser foot which is flat, circular and 10 mm * 0,l mm in diameter, as defined in IS0 4648
25、. The gauge has a scale division of 0,Ol mm. 5 Sampling and conditioning The test pieces to be tested are taken in accordance with prEN 13400:1998. All test pieces shall be conditioned in accordance with EN 12222, before testing for a minimum of 24 h. The test samples with the full thickness of the
26、outsoles shall be tested. A minimum of three test pieces is necessary. 6 Test method 6.1 Test specimen piece Using a scalpel or other sharp knife (4.2) and a steel rule (4.1), cut the test specimens to the dimensions and tolerances given in Figure 1. Make two parallel reference cuts on the external
27、surface not more than 0,5 mm deep across the full width of the test specimen on each side of it, 100 mm * 5 mm apart for the larger test specimen and 50 mm * 5 mm apart for the smaller test specimen. QBSI 02-2000 STD-BSI BS EN 12772-ENGL 2000 m Lb24bb9 0830242 249 m Page 6 EN 12772: 1999 6.2 Measure
28、ment before heat treatment (Lo) Measure to within * 0,2 mm the distance between the reference cuts along the centreline. 6.3 Heat treatment Place the test specimens horizontally (supported in such a way as to ensure adequate air ventilation on all sides) in the oven (4.3) for 24 h * 0,5 h at the tem
29、perature of 70 OC i 2 OC. 6.4 Measurement after heat treatment (i) Remove the test specimen from the oven at the end of the period of heat treatment. Keep the test specimens for at least 30 min in a standard atmosphere. If the test specimens are bowed, hold them flat for measurement. If the measurin
30、g cuts have widened, take the point of the measurement as the centre of the cut. Measure to within * 0,2 mm the distance between these cuts along the centreline as described in Figure 1 using an appropriate device. 7 Expression of results For each test specimen, calculate the shrinkage of the distan
31、ce between the reference cuts produced by the heat treatment and express this as a percentage of the original distance. The worst of the three values will be the result. Shrinkage S, in %, is to be calculated using the formula: L-Lo LO S=- x 100 where L, is the original distance between the referenc
32、e cuts in millimetres, as recorded according to 6.2; 1 is the distance between the reference cuts after heat treatment, in millimetres, as recorded according to 6.4. QBSI 02-2000 STD*BSI BS EN 12772-ENGL 2000 Lb24bb9 0830243 185 Page 7 EN 12772:1999 8 Test report The test report shall include the fo
33、llowing information: results, expressed in accordance with clause 7; dimensions (including thickness) of the test specimen; full description of the samples tested including commercial styles, codes, colours, nature, etc.; reference to this method of test; date of testing; any deviations from this te
34、st method; the age of the sample. OBSI 02-2000 STD-BSI BS EN 12772-ENGL 2000 Lb24bb9 0830244 OLL Page 8 EN 12772:1999 c I Dimensions in mm Shallow cut on each side of test specimen, i- I- & Shallow cut on each side of test specimen Figure 1 - Long and short test specimens for shrinkage, showing dime
35、nsions and positions of reference cuts OBSI 02-2000 BS EN 12772:2000 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the intemational l
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