BS-6014-2003.pdf
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1、BRITISH STANDARD BS 6014:2003 Incorporating Corrigendum No. 1 Ethylene propylene rubber compounds Specification ICS 83.060 ? Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:25:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6014:2003 This British Standard was published under the authority
2、 of the Standards Policy and Strategy Committee on 18 June 2003 BSI 4 September 2003 The following BSI references relate to the work on this British Standard: Committee reference PRI/54 Draft for comment 02/122018 DC ISBN 0 580 41848 0 Committees responsible for this British Standard The preparation
3、 of this British Standard was entrusted to PRI/54, Vulcanized rubber compounds, upon which the following bodies were represented: British Rubber Manufacturers Assn Chemical Industries Association Ministry of Defence RAPRA Technology Ltd Tun Abdul Razak Research Centre Amendments issued since publica
4、tion Amd. No.DateComment 14585 Corrigendum No.1 4 September 2003 Changes to Table 2 and Table 3 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:25:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6014:2003 BSI 4 September 2003 i Contents Page Committees responsibleInside front cover Forewo
5、rdii 1Scope1 2Normative references1 3Classification1 4Composition1 5Preparation of test sheet2 6Physical properties of the vulcanized test sheet2 7Marking2 Annex A (informative) Guidance for the preparation and testing of rubber products5 Annex B (informative) Line call-outs6 Bibliography7 Table 1 C
6、ompound classification1 Table 2 Physical properties of two-thickness sulfur vulcanized test sheets3 Table 3 Physical properties of two-thickness peroxide vulcanized test4 Table B.1 Line call-outs6 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:25:43 GMT+00:00 2006, Uncontrolled Copy, (c)
7、BSI BS 6014:2003 ii BSI 4 September 2003 Foreword This British Standard has been prepared under the direction of PRI/54, Vulcanized rubber compounds. It supersedes BS 6014:1991, which is withdrawn. One technical change has been made, namely the inclusion of the larger type 1 dumbbell of BS 903-A2 as
8、 an alternative to the type 2 dumbbell for the measurement of tensile strength and elongation at break (Table 2). This edition otherwise comprises an editorial revision of the 1991 standard, in which the presentation has been changed to align the text with other British Standards in the group. Requi
9、rements for general purpose acrylonitrile-butadiene rubber compounds are given in BS 2751. Other British Standards in this group for rubber compounds are as follows: BS 1154, Natural rubber compounds Specification. BS 1155, Natural rubber compounds for extrusion Specification. BS 2751, General purpo
10、se acrylonitrile-butadiene rubber compounds Specification. BS 2752, Chloroprene rubber compounds Specification. BS 3227, Butyl rubber compounds (including halobutyl compounds) Specification. BS 6996, Mineral oil resistant acrylonitrile-butadiene rubber compounds Specification. The following British
11、Standards are also relevant to this standard. BS 3558, Glossary of rubber terms. BS 3734-1, Rubber Tolerances for products Part 1: Dimensional tolerances. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compl
12、iance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to ii, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was la
13、st issued. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:25:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6014:2003 BSI 4 September 2003 1 1 Scope This British Standard specifies compositional and physical property requirements for five sulfur vulcanized (S) and five peroxide vulcaniz
14、ed (P) ethylene propylene rubber compounds of hardness range 40 IRHD to 80 IRHD, designated EP40, EP50, EP60, EP70 and EP80. These compounds are intended for the manufacture of items in the form of extrusions, mouldings, moulded or calendered sheet and for items cut or punched from sheet. NOTEThe co
15、mpounds do not necessarily have good electrical insulating properties. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the reference cited applies. For undated references, the latest edition of the reference
16、d document (including any amendments). BS 903-A1:1996, Physical testing of rubber Part A1: Determination of density. BS 903-A2:1995, Physical testing of rubber Part A2: Method for determination of tensile stressstrain properties. BS 903-A6:1992, Physical testing of rubber Part A6: Method for determi
17、nation of compression set at ambient, elevated or low temperatures. BS 903-A19:1998, Physical testing of rubber Part A19: Rubber, vulcanized or thermoplastic Accelerated ageing and heat resistance tests. BS 903-A26:1995, Physical testing of rubber Part A26: Method for Determination of hardness (hard
18、ness between 10 IRHD and 100 IRHD). 3 Classification Compounds shall be classified according to their vulcanized hardness, in international rubber hardness degrees (IRHD), and designated by grade as shown in Table 1. Table 1 Compound classification 4 Composition The compounds shall be based entirely
19、 on an ethylene propylene copolymer or terpolymer and shall be vulcanized either with a sulfur/organic accelerator system or with an organic peroxide system as appropriate. NOTE 1A sufficient quantity of oil(s) or plasticizer(s) of a suitable type may be incorporated to assist processing or to obtai
20、n the specified physical properties. No reclaimed or ground vulcanized rubber shall be used. All ingredients of the mix shall be free from grit and extraneous material. NOTE 2Chemical analysis may be carried out on either two-thickness sample sheets or sample items, as practicable, to verify that th
21、e composition of the mix conforms to this clause. The methods described in BS 4181-1, BS 5923-2, BS 7164-2.2, BS 7164-3, BS 7164-5, BS 7164-7.1, BS 7164-13, BS 7164-14, BS 7164-21 and BS 7164-22.1 should be used where relevant. Grade designationHardness after vulcanization (IRHD) EP40SaEP40Pa EP50SE
22、P50P EP60SEP60P EP70SEP70P EP80SEP80P a Compounds EP40S and EP40P are not necessarily suitable for extrusion. 40 4 +5 50 4 +5 60 4 +5 70 4 +5 80 4 +5 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:25:43 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6014:2003 2 BSI 4 September 2003 5 Prepa
23、ration of test sheet From each batch of rubber mix, a two-thickness test sheet of the following dimensions shall be prepared for testing. The sheet shall be approximately 250 mm square with a thicker section along one side 35 mm to 50 mm wide and (6.30 0.15) mm thick. The remainder of the sheet shal
24、l be (2.00 0.15) mm thick. The thicker sections of the sheet shall not be additionally vulcanized. If part of the 6.3 mm section is moulded in the form of cylindrical buttons complying with the type B test piece defined in BS 903-A6 for the purpose of compression set tests, the mould cavities shall
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