1、February 2015Translation by DIN-Sprachendienst.English price group 7No 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
2、 83.100!%?cB“2286431www.din.deDDIN EN ISO 2440Flexible and rigid cellular polymeric materials Accelerated ageing tests (ISO 2440:1997 + Amd.1:2010 + Amd.2:2014);English version EN ISO 2440:1999 + A1:2010 + A2:2014,English translation of DIN EN ISO 2440:2015-02Weich- und Hartschaumstoffe Schnellalter
3、ungsprfung (ISO 2440:1997 + Amd.1:2010 + Amd.2:2014);Englische Fassung EN ISO 2440:1999 + A1:2010 + A2:2014,Englische bersetzung von DIN EN ISO 2440:2015-02Matriaux polymres alvolaires souples et rigides Essais de vieillissement acclr (ISO 2440:1997 + Amd.1:2010 + Amd.2:2014);Version anglaise EN ISO
4、 2440:1999 + A1:2010 + A2:2014,Traduction anglaise de DIN EN ISO 2440:2015-02SupersedesDIN EN ISO 2440:2010-06www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1001.15 DIN EN ISO 2440:2015-02 2 A comma is used as the decimal marker.
5、National foreword This document (EN ISO 2440:1999 + A1:2010 + A2:2014) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in collaboration with Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation
6、was the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-04-37 AA Prfung von Weich- und Hartschumen. This document includes Amendment A1:2010 to EN ISO 2440:1999 approved by CEN on 06 February 2010. Amendment A1 modifies the permissible tempera
7、ture tolerances of the accelerated ageing test. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document includes Amendment A2:2014 to EN ISO 2440:1999 approved by CEN on 06 September 2014. The start and finish of text introduced or altered b
8、y amendment is indicated in the text by tags #$. Amendments This standard differs from DIN EN ISO 2440:2010-06 as follows: a) Clause 1 has been extended; b) item 7 b) has been added; c) item 7 d) has been added. Previous editions DIN 53578: 1974-02, 1987-03, 1988-12 DIN EN ISO 2440: 2000-01, 2010-06
9、 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2440 November 1999 + A1 + A2 February 2010 October 2014 ICS 83.100 English version Flexible and rigid cellular polymeric materials Accelerated ageing tests (ISO 2440:1997 + AMD 1:2010 + AMD 2:2014) Matriaux polymres alvolaires souples et rigi
10、des Essais de vieillissement acclr (ISO 2440:1997 + AMD 1:2010 + AMD 2:2014) Weich- und Hartschaumstoffe Schnellalterungsprfung (ISO 2440:1997 + AMD 1:2010 + AMD 2:2014) EN ISO 2440:1999 was approved by CEN on 1998-06-21, Amendment A1:2010 on 2010-02-06 and Amendment A2:2014 on 2014-09-06. CEN membe
11、rs 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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applicatio
12、n 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manageme
13、nt 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, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, L
14、ithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brus
15、sels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2440:1999 + A1:2010 + A2:2014 EDIN EN ISO 2440:2015-02 EN ISO 2440:1999 + A1:2010 + A2:2014 (E) 2 Contents Page Foreword to EN ISO 2440:1999 3 !Foreword to EN ISO 2440:1
16、999/A1:2010“ 3 #Foreword to EN ISO 2440:1999/A2:2014$ 4 1 Scope 5 2 Normative references 5 3 Apparatus .5 3.1 For heat ageing 5 3.2 For humidity ageing.5 3.3 For physical-property measurements .6 4 Test pieces .6 4.1 Number, size and shape 6 4.2 Conditioning .6 5 Procedure .6 5.1 General 6 5.2 Dry h
17、eat ageing 6 5.2.1 Temperatures .6 5.2.2 Duration of ageing .7 5.3 Humidity ageing .7 5.3.1 Humidity 7 5.3.2 Temperatures and duration of ageing .7 5.4 Reconditioning .7 6 Expression of results 7 6.1 Calculation 7 6.2 Format .8 7 Test report 8 DIN EN ISO 2440:2015-02 EN ISO 2440:1999 + A1:2010 + A2:
18、2014 (E) 3 Foreword to EN ISO 2440:1999 The text of ISO 2440:1997 has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” and has been taken over as a European Standard by Technical Committee CEN/TC 249 “Plastics”, the Secretariat of which is held by IBN. This European Standa
19、rd 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. In accordance with the CEN/CENELEC Internal Regulations, the national standar
20、ds organizations of the following countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Endo
21、rsement notice The text of the International Standard ISO 2440:1997 was approved by CEN as a European Standard without any modification. !Foreword to EN ISO 2440:1999/A1:2010“ This document (EN ISO 2440:1999/A1:2010) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in
22、collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. This Amendment to the European Standard EN ISO 2440:1999 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2010,
23、 and conflicting national standards shall be withdrawn at the latest by August 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. A
24、ccording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
25、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2440:1997/Amd 1:2010 has been approved by CEN as EN ISO 2440:1999/A1:2010 without any modification.
26、DIN EN ISO 2440:2015-02 EN ISO 2440:1999 + A1:2010 + A2:2014 (E) 4 #Foreword to EN ISO 2440:1999/A2:2014$ This document (EN ISO 2440:1999/A2:2014) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” in collaboration with Technical Committee CEN/TC 249 “Plastics” the secre
27、tariat of which is held by NBN. This Amendment to the European Standard EN ISO 2440:1999 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the latest by
28、 April 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards
29、 organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxemb
30、ourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2440:1997/Amd 2:2014 has been approved by CEN as EN ISO 2440:1999/A2:2014 without any modification. DIN EN ISO 2440:2015-02 E
31、N ISO 2440:1999 + A1:2010 + A2:2014 (E) 5 WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish app
32、ropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This International Standard specifies, for flexible and rigid cellular polymeric materials, laboratory procedures which are intended to imitate the effects of naturally occurring reactions
33、such as oxidation or hydrolysis by humidity. The physical properties of interest are measured before and after the application of the specified treatments. Test conditions are only given for open cellular latex, both openand closed-cell polyurethane foams, and closed-cell polyolefin foams. Condition
34、s for other materials will be added as required. The effect of the ageing procedures on any of the physical properties of the material may be examined, but those normally tested are either the elongation and tensile properties, or the compression or indentation hardness properties. These tests do no
35、t necessarily correlate either with service behaviour or with ageing by exposure to light. #If desired, the ageing conditions contained in this International Standard can be applied to composite structures containing any of the above types of cellular material. This can be helpful in the investigati
36、on of possible interactions between cellular materials and other substrates. Composite constructions can be in the form of complete finished products or representative small specimens cut there-from.$ 2 Normative references The following referenced documents are indispensable for the application of
37、this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. !ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods“ 3 Apparatus 3.1 F
38、or heat ageing 3.1.1 Oven, with forced circulation, capable of maintaining the required temperature !to within 3 C“. NOTE It is recommended that a device be used to record the temperature, preferably continuously. 3.2 For humidity ageing 3.2.1 Ageing apparatus, of such a size that the total volume o
39、f the test pieces does not exceed 10 % of the free air space, and such that the test pieces are free of strain, freely exposed to the ageing atmosphere on all sides and not exposed to light. 3.2.2 Steam autoclave or similar vessel, capable of maintaining the required temperature !to within 3 C“ and
40、of withstanding absolute pressures up to 300 kPa. 3.2.3 Glass vessel, with a suitable closure, and a water-bath or drying oven for heating the vessel, capable of maintaining the required temperature !to within 3 C“. DIN EN ISO 2440:2015-02 EN ISO 2440:1999 + A1:2010 + A2:2014 (E) 6 3.3 For physical-
41、property measurements Use apparatus appropriate to the measurements of the physical property to be examined. 4 Test pieces 4.1 Number, size and shape The number of test pieces, and their size and shape, shall be appropriate to the property being examined. They shall be prepared, before ageing, to th
42、e dimensions used in the particular test. 4.2 Conditioning Material shall not be tested less than 72 h after manufacture, unless at either 16 h or 48 h after manufacture it can be demonstrated that the mean result does not differ by more than 10 % from those obtained after 72 h. Testing is permitted
43、 at either 16 h or 48 h if, at the specified time, the above criterion has been satisfied. Prior to the test, the test pieces shall be conditioned, undeflected and undistorted, for at least 16 h in one of the following atmospheres as given in !ISO 23529“: 23 C 2 C, (50 5) % relative humidity; 27 C 2
44、 C, (65 5) % relative humidity. This period can form the latter part of the period following manufacture. NOTE It is recommended that for reference purposes the test be performed 7 days or more after the cellular material has been manufactured. 5 Procedure 5.1 General After conditioning, the test of
45、 the required physical property shall be performed and the test pieces shall be brought rapidly to the ageing condition. If the test to be performed is destructive, for example the examination of tensile properties, it is recommended that the tests on both reference and aged material be performed at
46、 the same time, that is after the exposure of the latter to the ageing conditions. The ageing conditions shall be chosen from the following alternatives which should be appropriate to the material under test. It is recommended that materials differing in chemical composition should not be aged in th
47、e same enclosure. #If a finished product is being studied for interaction effects, ensure that the test enclosure contains only that finished product test specimen.$ 5.2 Dry heat ageing 5.2.1 Temperatures Polyolefin 70 C Latex 70 C or 100 C !Polyurethane 80 C, 125 C or 140 C“ DIN EN ISO 2440:2015-02
48、 EN ISO 2440:1999 + A1:2010 + A2:2014 (E) 7 NOTE The use of the non-standard temperature of 140 C is included for the following technical reason: the temperature of the ageing test should be as high as possible to enable results to be obtained in the minimum time, but above this critical temperature
49、 the changes which occur when polyurethane foam is tested are not those which are found in service, so that the ageing test will no longer discriminate between foams of different behaviour in service. 5.2.2 Duration of ageing Use 16 h, 22 h, 72 h, 96 h, 168 h, 240 h or some multiple of 168 h, with a tolerance 5 %, but not more than 4 h. 5.3 Humidity ageing 5.3.1 Humidity Use 100 % relative humidity or saturated steam. 5.3.2 Temperatures a
