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1、Reference number ISO 4709:2000(E) ISO 2000 INTERNATIONAL STANDARD ISO 4709 Second edition 2000-12-15 Composition cork Gasket material Classification system, requirements, sampling, packaging and marking Agglomr compos de lige Matriau pour joints pour industries mcaniques Systme de classification, ex
2、igences, chantillonnage, emballage et marquage Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E)
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6、00 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the cou
7、ntry of the requester. ISO copyright office Case postale 56 ? CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2000 All rights reserved Copyright International Organization for Standardization Provided by IHS under lic
8、ense with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) ISO 2000 All rights reservediii Foreword ISO (the International Organization for Standardization) is a worldwide federation of na
9、tional 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 subject for which a technical committee has been established has the right to be represented on that committee. Intern
10、ational organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the
11、rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the
12、possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 4709 was prepared by Technical Committee ISO/TC 87, Cork. This second edition cancels
13、and replaces the first edition (ISO 4709:1985), which has been technically revised. Annex A of this International Standard is for information only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007
14、 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without lic
15、ense from IHS -,-,- INTERNATIONAL STANDARDISO 4709:2000(E) ISO 2000 All rights reserved1 Composition cork Gasket material Classification system, requirements, sampling, packaging and marking 1Scope This International Standard gives a classification system for composition cork intended to be used as
16、gaskets in the mechanical industry. It provides a means for specifying or describing the relevant properties. Since not all properties that contribute to gasket performance are included, the use of this system is limited to the selection of materials in accordance with specified requirements. 2Norma
17、tive references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements ba
18、sed on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of cur
19、rently valid International Standards. ISO 633, Cork Vocabulary. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. ISO 4708, Composition cork Gasket material Test methods. ISO 7322, Composition co
20、rk Test methods. ISO 9392, Agglomerated cork discs Sealing behaviour. 3Terms and definitions For the purposes of this International Standard, the terms and definitions given in ISO 633 apply. 4Basis of classification 4.1General 4.1.1The classification system outlined in this International Standard i
21、s intended to encourage uniformity in reporting properties, to provide a common language between suppliers and consumers, and to guide designers and engineers in stipulating specifications based on common test methods for commercially available materials. Copyright International Organization for Sta
22、ndardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) 2 ISO 2000 All rights reserved 4.1.2This classification system is versatile enough to also
23、cover new materials and test methods as they are introduced. It is based on the principle that non-metallic gasket materials should be described, as far as possible, in terms of specific physical and mechanical properties and that an infinite number of such descriptions can be formulated by using on
24、e or more statements, based on tests. 4.1.3Users of gasket materials may, by selecting different combinations of different statements, specify different combinations of desired properties. Suppliers may, likewise, report properties available in their respective products. 4.2Significance of the syste
25、m 4.2.1This classification system establishes letter or number symbols or both (“line call-out“) for various performance levels of each property or characteristic (see clause 5). 4.2.2Various levels of specification or description may be established by increasing or decreasing the number of letter-n
26、umeral symbols used in the “line call-out“. 4.2.3The specification or description of gasket materials, in this system, shall include a reference to this International Standard followed by six numerals, e.g. ISO 4709 (220340). 4.2.4Each numeral represents one characteristic (see clause 5). 4.2.5The n
27、umeral “0“ is used when the description of any characteristic is not desired. 4.2.6The numeral “9“ is used when the description of any characteristic is specified by some supplement to this classification system, such as engineering drawings. 4.2.7To specify or describe gasket materials further, eac
28、h “line call-out“ may include one or more suffix letter- numeral symbols (see Table 1). 5Description of the system 5.1Basic characteristics 5.1.1The first numeral in the “line call-out“ is related to the type of raw material that is the base of the gasket material; for cork products the number 2 sha
29、ll be used. 5.1.2When the first numeral is 2, the second numeral in the “line call-out“ may assume the following figures (related to the type of agglomerate): 0not specified 1composition cork 2cork and elastomeric 3cork and cellular rubber 9as specified 5.1.3The third numeral is related to the compr
30、essibility characteristics of the agglomerated cork, expressed as a percentage and determined in accordance with ISO 4708: 0not specified5from 20 % to 30 % 1from0 % to 10 %6from 25 % to 40 % 2from5 % to 7 %7from 30 % to 50 % 3from 10 % to 20 %8from 40 % to 60 % 4from 15 % to 25 %9as specified Copyri
31、ght International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) ISO 2000 All rights reserved3 5.1.4The fourth numeral
32、 is related to the thickness increase of the agglomerated cork, after immersion in ASTM Oil No. 3, expressed as a percentage and determined in accordance with ISO 4708: 0not specified5from 20 % to 40 % 1from 0 % to 15 %6from 30 % to 50 % 2from 5 % to 20 %7from 40 % to 60 % 3from 10 % to 25 %8from 50
33、 % to 70 % 4from 15 % to 30 %9as specified 5.1.5The fifth numeral is related to the mass increase of the agglomerated cork, after immersion in ASTM Oil No. 3, expressed as a percentage and determined in accordance with ISO 4708: 0not specified5maximum40 % 1maximum 10 %6maximum60 % 2maximum 15 %7maxi
34、mum80 % 3maximum 20 %8maximum 100 % 4maximum 30 %9as specified 5.1.6The sixth numeral is related to the mass increase of the agglomerated cork, after immersion in water, expressed as a percentage and determined in accordance with ISO 4708: 0not specified5maximum40 % 1maximum 10 %6maximum60 % 2maximu
35、m 15 %7maximum80 % 3maximum 20 %8maximum 100 % 4maximum 30 %9as specified 5.2Supplementary characteristics The characteristics given in Table 1 are found to be important for some specific purposes (see 4.2.7). 6Requirements 6.1Basic requirements The characteristics of gasket materials identified by
36、this classification shall be indicated by the first six numerals of the “line call-out“, within the limits shown in 5.1.1 to 5.1.6, and by additional letter-numeral symbols as shown in Table 1. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=A
37、ramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) 4 ISO 2000 All rights reserved Table 1 Supplementary characteristics SymbolCharacteristicTest methodRequirement A9Sealing behaviourISO 9392A9Was specifie
38、d E0 to E9 Thickness increase (%) ISO 470 and ISO 7322 E0not specified E10 % to 5 % E20 % to 10 % E30 % to 15 % E45 % to 20 % E510 % to 25 % E615 % to 35 % E725 % to 45 % E830 % to 60 % E9as specified T1 to T9 Tensile strength (kPa) ISO 4708 and ISO 7322 M1W0,670 MPa M2W1,7 MPa M3W3,4 MPa M4W6,8 MPa
39、 M5W10,3 MPa M6W13,8 MPa M7W20,7 MPa M8W27,6 MPa M9 as specified DBinder durabilityISO 4708Shall not disaggregatea FFlexibilityISO 4708Shall be flexibleb a A test specimen is said to “disaggregate“ if it splits open and/or if it shows substantial loss of particles during the test. b A test specimen
40、is said to be flexible if it does not show any crack, break or surface separation after testing. 6.2Thickness requirements Gasket materials identified by this classification shall conform to the thickness tolerances specified in Table 2. Copyright International Organization for Standardization Provi
41、ded by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) ISO 2000 All rights reserved5 Table 2 Thickness and tolerances allowed Type Thickness mm Tolerances Compositi
42、on corkfrom 1,5 to 6 ? 0,10 % or ? 0,25 mm (whichever is the greatest) Cork and elastomeric 1,5 W1,5 ? 0,25 mm ? 0,40 mm Cork and cellular rubber W1,5? 0,40 mm 7Sampling Test specimens shall be selected from sheets of suitable size. They shall be cut squarely. The grain direction shall be noted by a
43、n arrow, whenever possible. See ISO 2859-1 for sampling schemes. 8Packaging Composition cork shall be kept in moisture-resistant packages or pallets which ensure transportation without damaging the products until arrival at their destination. 9Marking Packages shall show the following information: a
44、)reference to this International Standard, i.e. ISO 4709; b)product designation in accordance with 4.2; c)manufacturer identification, even if coded; d)source. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale
45、, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 4709:2000(E) 6 ISO 2000 All rights reserved Annex A (informative) Applicable test methods Table A.1 indicates the properties, characteristics and test methods that are normally considered applicable t
46、o cork gasket materials. It is not intended to limit the use of the numeral-symbols as provided in this classification system where experience indicates that the related properties, characteristics or test methods or all of these are applicable. Table A.1 Types of materials and applicable test metho
47、ds Product: Composition cork Properties, characteristics and methods Type 1aType 2bType 3c Compressibility Total pressure 700 kPa (? of the indentor: 28,7 mm)XX Total pressure 2 750 kPa (? of the indentor: 12,8 mm)X Resistance to ASTM Oil No. 3 Volume increaseXX Resistance to ASTM Oil No. 1 Volume i
48、ncrease, 70 h at 100 CXX Resistance to ASTM Fuel A Volume increase, 22 h at 20 C to 30 CXX Resistance to boiling waterX SealingXXX FlexibilityXXX a Composition cork. b Cork and elastomeric. c Cork and cellular rubber. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/23/2007 09:05:58 MDTNo reproduction or networking permitted withou