1、November 2016 English price group 14No 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 83.060!%YU“2585450www.din.deDIN
2、 ISO 1817Rubber, vulcanized or thermoplastic Determination of the effect of liquids (ISO 1817:2015),English translation of DIN ISO 1817:2016-11Elastomere oder thermoplastische Elastomere Bestimmung des Verhaltens gegenber Flssigkeiten (ISO 1817:2015),Englische bersetzung von DIN ISO 1817:2016-11Caou
3、tchouc vulcanis ou thermoplastique Dtermination de laction des liquides (ISO 1817:2015),Traduction anglaise de DIN ISO 1817:2016-11SupersedesDIN ISO 1817:200808www.beuth.deDocument comprises 29 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered
4、 authoritative.10.16 A comma is used as the decimal marker. Contents PageForeword .5Introduction .61 Scope . 72 Normative references 73 Apparatus . 74 Calibration 95 Test liquids . 96 Test pieces . 96.1 Preparation 96.2 Dimensions . 96.3 Time interval between vulcanization and testing .106.4 Conditi
5、oning .107 Immersion in the test liquid 107.1 Temperature .107.2 Duration .118 Procedure118.1 General 118.2 Change in mass 128.3 Change in volume.128.4 Change in dimensions 138.5 Change in surface area 148.6 Change in hardness 148.7 Change in tensile stress-strain properties .158.8 Testing with liqu
6、id on one surface only 158.9 Determination of extractable matter 1669 Precision 1710 Test report 17Annex A (normative) Reference liquids .18Annex B (normative) Calibration schedule 21Annex C (informative) Precision results from an interlaboratory test programme 23Bibliography .29DIN ISO 1817:2016-11
7、 2National Annex NA (informative) Bibliography 4National foreword 3National foreword This standard (ISO 1817:2015) has been prepared by Technical Committee ISO/TC 45 “Rubber and rubber products” (Secretariat: DSM, Malaysia), Subcommittee SC 2 “Testing and analysis” (Secretariat: JISC, Japan). The re
8、sponsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-04-34 AA Prfung der physikalischen Eigenschaften von Kautschuk und Elastomeren. Attention is drawn to the possibility that some of the elemen
9、ts of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. When preparing and handling test liquids, appropriate safety precautions in accordance with national regulations should be taken: 2,2,4-trimethylpentan
10、e, toluene, di-isobutylene, ethanol and methanol are highly flammable, water hazardous liquids giving off fumes which, mixed with air, generate explosive mixtures. They are highly volatile and cause hazards to health. 1-methylnaphthalene is a water hazardous liquid and causes hazards to health. When
11、 subjected to intense heat, straight-chain paraffins (C12 to C18) are highly ignitable, even if not in contact with an ignition source (ignition temperature below 250 C). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 37 DIN 53504 ISO
12、48 DIN ISO 48 ISO 175 DIN EN ISO 175 ISO 7619-1 DIN ISO 7619-1 ISO 13226 DIN ISO 13226 ISO 23529 DIN ISO 23529 Amendments This standard differs from DIN ISO 1817:2008-08 as follows: a) thermoplastic rubber is now included; b) reference oils have been updated (A.2); c) calibration of the apparatus us
13、ed has been specified (see Annex B); d) precision results have been included (see Annex C); e) the flash point of reference oil No. 2 has been modified; f) the CAS Registry Number has been included in Tables A.1 and A.2, and Clause A.3 has been added; g) a Bibliography has been included. DIN ISO 181
14、7:2016-11 3 Previous editions DIN 53521: 1943-07, 1959-02, 1979-04, 1987-11 DIN ISO 1817: 2004-06, 2008-08 National Annex NA (informative) Bibliography DIN 53504, Testing of rubber Determination of tensile strength at break, tensile stress at yield, elongation at break and stress values in a tensile
15、 test DIN EN ISO 175, Plastics Methods of test for the determination of the effects of immersion in liquid chemicals DIN ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) DIN ISO 7619-1, Rubber, vulcanized or thermoplastic Determination of
16、indentation hardness Part 1: Durometer method (Shore hardness) DIN ISO 13226, Rubber Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers DIN ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical test methods DIN I
17、SO 1817:2016-11 4 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subj
18、ect for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IE
19、C) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be n
20、oted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifyin
21、g any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience o
22、f users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supple
23、mentary informationThe committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 2, Testing and analysis.This sixth edition cancels and replaces the fifth edition (ISO 1817:2011), which has been revised to include a precision statement (see Annex C). Additiona
24、lly, the flash point of oil No. 2 has been adjusted to the actual value and the CAS (Chemical Abstracts Service) numbers have been incorporated in Table A1 and A2 as well as in Clause A.3.DIN ISO 1817:2016-11 5 IntroductionThe action of a liquid on vulcanized or thermoplastic rubber can generally re
25、sult in:a) absorption of the liquid by the rubber;b) extraction of soluble constituents from the rubber;c) a chemical reaction with the rubber.The amount of absorption a) is usually larger than that of extraction b) so that the net result is an increase in volume, commonly termed “swelling”. The abs
26、orption of liquid can profoundly alter physical and chemical properties and hence change tensile strength, extensibility and hardness of the rubber, so it is important to measure these properties after treatment of the rubber. The extraction of soluble constituents, especially plasticizers and antid
27、egradants, can likewise alter the rubbers physical properties and chemical resistance after drying (assuming the liquid to be volatile). Therefore, it is necessary to test these properties following immersion and drying of the rubber. This International Standard describes the methods necessary for d
28、etermining the changes in the following properties: change in mass, volume and dimensions; extractable matter; change in hardness and tensile stress-strain properties after immersion and after immersion and drying.Although in some respects these tests might simulate service conditions, no direct cor
29、relation with service behaviour is implied. Thus, the rubber giving the lowest change in volume is not necessarily the best one in service. The thickness of the rubber needs to be taken into account since the rate of penetration of liquid is time-dependent and the bulk of a very thick rubber product
30、 might remain unaffected for the whole of the projected service life, especially with viscous liquids. Moreover, it is known that the action of a liquid on rubber, especially at high temperatures, can be affected by the presence of atmospheric oxygen. The tests described in this International Standa
31、rd can, however, provide valuable information on the suitability of a rubber for use with a given liquid and, in particular, constitute a useful control when used for developing rubbers resistant to oils, fuels, or other service liquids.The effect of a liquid might depend on the nature and magnitude
32、 of any stress within the rubber. In this International Standard, test pieces are tested in an unstressed condition.DIN ISO 1817:2016-11 6 Rubber, vulcanized or thermoplastic Determination of the effect of liquidsWARNING 1 Persons using this document should be familiar with normal laboratory practic
33、e. This document 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 appropriate safety and health practices and to ensure compliance with any national regulatory conditions.WARNING 2 Certain procedures specified
34、in this document might involve the use or generation of substances, or the generation of waste, that could constitute a local environmental hazard. Reference should be made to appropriate documentation on safe handling and disposal after use.1 ScopeThis International Standard describes methods of ev
35、aluating the resistance of vulcanized and thermoplastic rubbers to the action of liquids by measurement of properties of the rubbers before and after immersion in test liquids. The liquids concerned include current service liquids, such as petroleum derivatives, organic solvents and chemical reagent
36、s, as well as reference test liquids.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)
37、 applies.ISO 37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain propertiesISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)ISO 175, Plastics Methods of test for the determination of the effects of immersion in li
38、quid chemicalsISO 7619-1, Rubber, vulcanized or thermoplastic Determination of indentation hardness Part 1: Durometer method (Shore hardness)ISO 18899:2013, Rubber Guide to the calibration of test equipmentISO 23529:2010, Rubber General procedures for preparing and conditioning test pieces for physi
39、cal test methodsASTM D5964, Standard Practice for Rubber IRM 901, IRM 902, and IRM 903 Replacement Oils for ASTM No. 1, ASTM No. 2, and ASTM No. 3 Oils3 Apparatus3.1 Total immersion apparatus, designed to take account of the volatility of the test liquid and of the immersion temperature in order to
40、prevent and minimize evaporation of the test liquid and the ingress of air.For tests at temperatures considerably below the boiling point of the test liquid, a stoppered glass bottle or tube shall be used. For tests at temperatures near the boiling point of the test liquid, the bottle or tube shall
41、be fitted with a reflux condenser or other suitable means of minimizing the evaporation of liquid.DIN ISO 1817:2016-11 7 The bottle or tube shall be so dimensioned that the test pieces remain completely immersed and all surfaces are completely exposed to the liquid without any restriction. The volum
42、e of liquid shall be at least 15 times the combined volume of the test pieces and the volume of air above the liquid shall be kept to a minimum.The test pieces shall be mounted in jigs, preferably hanging on a rod or wire, and separated from any adjacent test piece, for instance by glass rings or ot
43、her non-reactive spacers.The materials of the apparatus shall be inert to the test liquid and to the rubber; for example, materials containing copper shall not be used.3.2 Apparatus for testing one surface only, which holds the test piece in contact with the liquid on only one of its surfaces.A suit
44、able apparatus is illustrated in Figure 1. It comprises a base-plate (A) and an open-ended cylindrical chamber (B), which is held tightly against the test piece (C) by wing nuts (D) mounted on bolts (E). A hole of approximately 30 mm diameter is allowed in the base-plate for examination of the surfa
45、ce not in contact with the liquid. During the test, the opening on the top of the chamber shall be closed by a close-fitting plug (F).Dimensions in millimetresFigure 1 Apparatus for testing one surface only3.3 Balance, accurate to 1 mg.3.4 Instrument for measuring the thickness of the test piece, co
46、nsisting of a micrometre dial gauge, of adequate accuracy, firmly held in a rigid stand over a flat base-plate. The instrument shall comply with the requirements given for such apparatus in ISO 23529:2010, method A.3.5 Instrument for measuring the length and width of the test piece, having a scale g
47、raduated in divisions of 0,01 mm and preferably operating without contact with the test piece, for example using an optical system complying with the requirements given for such apparatus in ISO 23529:2010, method D.3.6 Instrument for measuring the change in surface area, capable of measuring the lengths of the diagonals of the test piece. It shall have a scale graduated in divisions of 0,01 mm and should preferably DIN ISO 1817:2016-11 8 operate without contact with the test piece, for example using an optical system complying with the requirements given for such appara
