1、March 2011 Translation by DIN-Sprachendienst.English price group 13No 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、83.080.01!$n:,“1752309www.din.deDDIN EN ISO 175Plastics Methods of test for the determination of the effects of immersion inliquid chemicals (ISO 175:2010)English translation of DIN EN ISO 175:2011-03Kunststoffe Prfverfahren zur Bestimmung des Verhaltens gegen flssige Chemikalien(ISO 175:2010)Englis
3、che bersetzung von DIN EN ISO 175:2011-03Plastiques Mthodes dessai pour la dtermination des effets de limmersion dans des produitschimiques liquides (ISO 175:2010)Traduction anglaise de DIN EN ISO 175:2011-03SupersedesDIN EN ISO 175:2000-10www.beuth.deDocument comprises pagesIn case of doubt, the Ge
4、rman-language original shall be considered authoritative.2803.11 DIN EN ISO 175:2011-03 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: ANSI, USA) in collaboration with Technical Committee CEN/TC 249
5、 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-01-04 AA Verhalten gegen Umgebungseinflsse. The DIN Standards corresponding to the International Standards ref
6、erred to in Clause 2 of this document are as follows: ISO 291 DIN EN ISO 291 ISO 294-3 DIN EN ISO 294-3 ISO 2818 DIN EN ISO 2818 ISO 3126 DIN EN ISO 3126 IEC 60296 DIN EN 60296 For the International Standard ISO 4582 referred to there is no DIN Standard available. Amendments This standard differs fr
7、om DIN EN ISO 175:2000-10 as follows: a) normative references in Clause 2 are now undated, except ISO 291; b) alternative test temperatures have been added in Subclause 4.2.1; c) the footnotes in Subclauses 4.2.1, 4.3.2, 4.6.2 and 6.3.2 have been incorporated in the text; d) in Subclause 5.5.2.1, th
8、e former expression “AV” in the formula has been defined as “V2 V1”; e) in Subclause 5.6.2.3 b), the appearance property “development of crazing and cracking” has been added; f) in Subclause 6.3.2, the footnote has been incorporated in the text; g) in Table A.2, reference is now made to ISO 1817:200
9、5; h) in Annex B, reference is now made to ISO 291:2008; i) the Bibliography has been updated; j) the standard has been editorially revised. Previous editions DIN 53476: 1964-07, 1979-08 DIN ISO 175: 1989-04 DIN EN ISO 175: 2000-10 DIN EN ISO 175:2011-03 3 National Annex NA (informative) Bibliograph
10、y DIN EN ISO 291, Plastics Standard atmospheres for conditioning and testing DIN EN ISO 294-3, Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates DIN EN ISO 2818, Plastics Preparation of test specimens by machining DIN EN ISO 3126, Plastics piping systems P
11、lastics components Determination of dimensions DIN EN 60296, Fluids for electrotechnical applications Unused mineral insulating oils for transformers and switchgear DIN EN ISO 175:2011-03 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 175 October 2010 ICS
12、 83.080.01 Supersedes EN ISO 175:2000English Version Plastics - Methods of test for the determination of the effects of immersion in liquid chemicals (ISO 175:2010) Plastiques - Mthodes dessai pour la dtermination des effets de limmersion dans des produits chimiques liquides (ISO 175:2010) Kunststof
13、fe - Prfverfahren zur Bestimmung des Verhaltens gegen flssige Chemikalien (ISO 175:2010) This European Standard was approved by CEN on 14 October 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
14、s 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ger
15、man). 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croati
16、a, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZA
17、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 175:2010: EContents EN ISO 175:2010 (E) DIN EN ISO 175
18、:2011-03 2 Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Principle6 4 General requirements and procedure .6 4.1 Test liquids.6 4.2 Test conditions 6 4.3 Immersion time 7 4.4 Test specimens7 4.5 Conditioning.8 4.6 Procedure .8 4.7 Expression of results 9 5 Determination of chang
19、es in mass, dimensions and appearance .10 5.1 General10 5.2 Apparatus .10 5.3 Test specimens11 5.4 Determination of changes in mass 12 5.5 Determination of changes in dimensions .14 5.6 Determination of changes in colour or other appearance attributes.16 6 Determination of changes in other physical
20、properties 17 6.1 General17 6.2 Apparatus .17 6.3 Test specimens17 6.4 Procedure .17 6.5 Calculation and expression of results.18 7 Precision.18 8 Test report 19 Annex A (normative) Types of test liquid .20 Annex B (informative) Notes on the absorption of moisture by plastic specimens in equilibrium
21、 with a conditioning atmosphere.23 Bibliography 24 Foreword This document (EN ISO 175:2010) has been prepared by Technical Committee ISO/TC 61 Plastics” in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. This European Standard shall be given the
22、status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn at the latest by April 2011. Attention is drawn to the possibility that some of the elements of this document may be the sub
23、ject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 175:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement t
24、his European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerla
25、nd and the United Kingdom. Endorsement notice The text of ISO 175:2010 has been approved by CEN as a EN ISO 175:2010 without any modification. EN ISO 175:2010 (E) DIN EN ISO 175:2011-03 3 “Introduction Because of their varied applications, plastics are frequently brought into contact with liquids su
26、ch as chemical products, motor fuels, lubricants, etc., and, possibly, with their vapours. Under the action of a liquid, a plastic material may be subjected to several phenomena which may occur simultaneously. On the one hand, absorption of liquid and extraction of constituents soluble in the liquid
27、 may occur. On the other hand, a chemical reaction, often resulting in a significant change in the properties of the plastic, may occur. The equilibrium swelling ratio for a crosslinked polymer in a liquid that is a solvent for the same but non-crosslinked polymer is a measure of the degree of cross
28、linking. The behaviour of plastics in the presence of liquids can be determined only under arbitrarily fixed conditions aimed at making comparisons between different materials. The choice of test conditions (nature of the liquid, immersion temperature and immersion time), as well as the choice of th
29、e properties in which changes are to be measured, depends on the eventual application of the plastic under test. It is not possible, however, to establish any direct correlation between the experimental results and the behaviour of the plastic in service. These tests do, nevertheless, permit a compa
30、rison to be made of the behaviour of different plastic materials under specified conditions, thus allowing an initial evaluation of their behaviour in relation to certain groups of liquids. NOTE In view of its special importance, the particular case of the determination of the quantity of water abso
31、rbed is dealt with in ISO 62. ISO 175 is concerned with the effects of water only where changes in the dimensions and physical properties of the plastic occur as a result of the action of the water. EN ISO 175:2010 (E) DIN EN ISO 175:2011-03 4 1 Scope 1.1 This International Standard specifies a meth
32、od of exposing test specimens of plastic materials, free from all external restraint, to liquid chemicals, and methods for determining the changes in properties resulting from such immersion. It does not cover environmental stress cracking (ESC) which is dealt with by the various parts of ISO 22088.
33、 1.2 It only considers testing by immersion of the entire surface of the test specimen1). NOTE This method may not be appropriate for simulating partial or infrequent wetting of plastics. 1.3 It is applicable to all solid plastics that are available in the form of moulding or extrusion materials, pl
34、ates, tubes, rods or sheets having a thickness greater than 0,1 mm. It is not applicable to cellular materials. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated referenc
35、es, the latest edition of the referenced document (including any amendments) applies. ISO 291:2008, Plastics Standard atmospheres for conditioning and testing ISO 294-3, Plastics Injection moulding of test specimens of thermoplastic materials Part 3: Small plates ISO 2818, Plastics Preparation of te
36、st specimens by machining ISO 3126, Plastics piping systems Plastics components Determination of dimensions ISO 4582, Plastics Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources IEC 60296, Fluids for
37、electrotechnical applications Unused mineral insulating oils for transformers and switchgear 1) Although it is not within the scope of this International Standard, it may also be of interest, when dealing with volatile liquids or those which give off vapours, to subject the specimen to only the gase
38、ous phase above the liquid. In this event, it is advisable to proceed exactly as indicated, but to suspend the specimen above the liquid, seal the container and maintain it at the test temperature throughout. EN ISO 175:2010 (E) DIN EN ISO 175:2011-03 5 3 Principle Test specimens are completely imme
39、rsed in a test liquid for a specified time and at a specified temperature. Their properties are determined before immersion and after removal from the liquid, as well as after drying, if applicable. In the last-mentioned case, the determinations are made, if possible, one after the other on the same
40、 specimens. NOTE The comparison of different plastics by means of this test is valid only if the specimens used are of the same shape, of the same dimensions (in particular of the same thickness) and in as nearly as possible the same state (of internal stress, surface, etc.). Methods are specified f
41、or determining the following: a) changes in mass, dimensions and appearance immediately after removal from the liquid and after removal and drying; b) changes in physical properties (mechanical, thermal, optical, etc.) immediately after removal from the liquid and after removal and drying; c) the am
42、ount of liquid absorbed. Measurements are made immediately after removal when it is necessary to ascertain the state of the material while it is still being acted on by the liquid. Measurements are made after removal and drying when it is necessary to ascertain the state of the material after the li
43、quid, provided it is volatile, has been eliminated. It also allows the influence of a soluble constituent to be determined. 4 General requirements and procedure 4.1 Test liquids 4.1.1 Choice of test liquid If information is required about the behaviour of a plastic in contact with a specific liquid,
44、 that liquid shall be used. The test liquid shall be of analytical quality. Industrial liquid chemicals are not generally of absolutely constant composition. The tests shall be carried out using defined chemical products, either on their own or as a mixture, which are as representative as possible o
45、f the products under consideration in their effect on the plastic material concerned. When technical-grade chemicals are used, they shall be of agreed origin and quality, and care shall be taken that only one manufacturing batch is used for all measurements in any one series. If conducting a series
46、of tests in a liquid of doubtful composition, it is important to take all the samples of the liquid from the same container. 4.1.2 Types of test liquid Types of test liquid are given in Annex A. 4.2 Test conditions 4.2.1 Test temperatures The preferred test temperatures are: a) (23 2) C; b) (70 2) C
47、. EN ISO 175:2010 (E) DIN EN ISO 175:2011-03 6 If a different temperature has to be used in order to correspond to the temperature at which the plastic is to be used, it shall be selected from one of the following temperatures: 269 C; 196 C; 161 C; 70 C; 55 C; 40 C; 25 C; 10 C; 0 C; 5 C; 25 C; 40 C;
48、 55 C; 70 C; 85 C; 100 C; 105 C; 125 C; 150 C; 175 C; 200 C; 225 C; 250 C; 275 C; 300 C; 350 C; 400 C; 450 C; 500 C; 600 C; 700 C; 800 C; 900 C; 1 000 C NOTE These temperatures originate from ISO 3205:1976. The following temperatures are recommended: 0 C; 20 C; 27 C; 40 C; 55 C; 85 C; 95 C; 100 C; 1
49、25 C; 150 C with a tolerance of 2 C on temperatures up to and including 100 C and 3 C on temperatures greater than 105 C up to and including 200 C. In the special case of testing plastic pipes, the temperature of 60 C given in the annex to ISO 3205:1976 may be used. In the event that the test is to be carried out at a temperature above normal ambient conditions, it may be desirable to condition another series of specimens at this temperature for a period equal to
