BS-ISO-1629-1995.pdf

BRITISH STANDARD BS ISO 1629:1995 Implementation of ISO 1629:1995 Rubbers and latices Nomenclature ICS 01.040.83;83.040.10;83.060 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 June 1996 © BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference PRI/10 Draft for comment 93/304747 DC ISBN 0 580 25915 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/10, Terminology for plastics and rubbers, upon which the following bodies were represented: British Plastics Federation British Rubber Manufacturers Association Chief and Assistant Chief Fire Officers Association Clay Pipe Development Association Ltd. Department of the Environment (Building Research Establishment) Department of Trade and Industry (Laboratory of the Government Chemist) Institute of Materials Malaysia Rubber Producers Research Association Ministry of Defence Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 © BSI 02-1999i Contents Page Committees responsibleInside front cover National forewordii Forewordiii 1Scope1 2Rubber1 3Symbol groups1 Annex A (informative) Bibliography4 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 ii © BSI 02-1999 National foreword This British Standard reproduces verbatim ISO 1629:1995 and implements it as the UK national standard. It supersedes BS 3502-2:1991 which is withdrawn. This British Standard is published under the direction of the Sector Board for Materials and Chemicals whose Technical Committee PRI/10 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services. BSI, 389 Chiswick High Road, London W4 4AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance 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 and ii, the ISO title page, pages ii, pages 1 to 4 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 ii Foreword ISO (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 subject 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 (IEC) on all matters of electrotechnical standardization. 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. International Standard ISO 1629 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products. This third edition cancels and replaces the second edition (ISO 1629:1987), which has been technically revised. Annex A of this International Standard is for information only. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 © BSI 02-19991 1 Scope 1.1 This International Standard establishes a system of symbols for the basic rubbers in both dry and latex forms, based on the chemical composition of the polymer chain. 1.2 The purpose of this International Standard is to standardize the terms used in industry, commerce and government, and it is not intended to conflict with, but rather to act as a supplement to, existing trade names and trade marks. NOTE 1In technical papers or presentations, the name of the rubber should be used if possible. The symbols should follow the chemical name for use in later references. 2 Rubbers Rubbers, in both dry and latex forms, are grouped and symbolized on the basis of the chemical composition of the polymer chain in the following manner: 3 Symbol groups 3.1 The “M” group The “M” group comprises rubbers having a saturated chain of the polymethylene type. The following symbols are used: 3.2 The “O” group The “O” group comprises rubbers having carbon and oxygen in the polymer chain. The following symbols are used: MRubbers having a saturated carbon chain of the polymethylene type NRubbers having carbon and nitrogen in the polymer chain NOTE 2No rubber has so far been symbolized in the “N” group. ORubbers having carbon and oxygen in the polymer chain QRubbers having silicon and oxygen in the polymer chain RRubbers having an unsaturated carbon chain, e.g. natural rubber and synthetic rubbers derived at least partly from conjugated dienes TRubbers having carbon, oxygen and sulfur in the polymer chain URubbers having carbon, oxygen and nitrogen in the polymer chain ZRubbers having phosphorus and nitrogen in the polymer chain ACMCopolymer of ethyl acrylate (or other acrylates) and a small amount of a monomer which facilitates vulcanization. (Usually known as acrylic rubber) AEMCopolymer of ethyl acrylate (or other acrylates) and ethylene ANMCopolymer of ethyl acrylate (or other acrylates) and acrylonitrile CMChloropolyethylenea CSMChlorosulfonylpolyethylene EPDMTerpolymer of ethylene, propylene and a diene with the residual unsaturated portion of the polymerized diene in the side chain EPMEthylene-propylene copolymer EVMEthylene-vinyl acetate copolymerb FEPMCopolymer of tetrafluoroethylene and propylene FFKMPerfluoro rubber in which all substituent groups on the polymer chain are fluoro, perfluoroalkyl or perfluoroalkoxy groups FKMFluoro rubber having substituent fluoro, perfluoroalkyl or perfluoroalkoxy groups on the polymer chain IMPolyisobutenec NBMFully hydrogenated acrylonitrile-butadiene co-polymer (see 3.4.2) a In ISO 1043-11, the abberviation given for chloropolyethylene is PE-C. b In ISO 1043-11, the abbreviation given for ethylene-vinyl acetate copolymer is E/VAC. c In ISO 1043-11, the abbreviation given for polyisobutene is PIB. COPolychloromethyloxirane (usually known as epichlorohydrin rubber) ECOCopolymer of ethylene oxide (oxirane) and chloromethyloxirane (also known as epichlorohydrin copolymer or rubber) GECOTerpolymer of epichlorohydrin-ethylene oxide-allyl glycidyl ether GPOCopolymer of propylene oxide and allyl glycidyl ether (also known as polypropylene oxide rubber) Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 2 © BSI 02-1999 3.3 The “Q” group The “Q” group is defined by inserting the name of the substituent group on the polymer chain prior to the silicone designation. The following symbols are used: The letter for substituent group(s) on the polymer chain is inserted to the left of the code letter for rubber with silicon and oxygen in the backbone (Q) in descending order of per cent present, i.e. largest nearest the Q. NOTE 3In ISO 1043-11, the symbol for silicone polymers is SI. 3.4 The “R” group 3.4.1 Description The “R” group, in both dry and latex forms, is defined by inserting, before the word “rubber”, the name of the monomer or monomers from which the rubber was prepared (except for natural rubber). The letter preceding the letter “R” signifies the conjugated diene from which the rubber was prepared (except for natural rubber). Any letter or letters preceding the diene letter signifies the comonomer or comonomers, substituent groups or chemical modifications. The designation may be prefixed by the letter E and a hyphen to signify an emulsion-polymerized rubber or the letter S and a hyphen to signify a solution-polymerized rubber. For latices, the designated symbol is followed by the word latex, e.g. “SBR latex”. The symbols given in 3.4.2 to 3.4.4 are used. 3.4.2 General 3.4.3 Rubbers having substituent carboxylic acid groups (COOH) on the polymer chain 3.4.4 Rubbers containing halogen on the polymer chain FMQSilicone rubber having both methyl and fluorine substituent groups on the polymer chain FVMQSilicone rubber having methyl, vinyl and fluorine substituent groups on the polymer chain MQSilicone rubber having only methyl substituent groups on the polymer chain, such as dimethyl polysiloxane PMQSilicone rubber having both methyl and phenyl substituent groups on the polymer chain PVMQSilicone rubber having methyl, vinyl and phenyl substituent groups on the polymer chain VMQSilicone rubber having both methyl and vinyl substituent groups on the polymer chain ABRAcrylate-butadiene rubber BRButadiene rubber CRChloroprene rubber ENREpoxidized natural rubber HNBRHydrogenated NBR (some unsaturation re-mains, see 3.1) IIRIsobutene-isoprene rubber (usually known as butyl rubber) IRIsoprene rubber, synthetic MSBR-methylstyrene-butadiene rubber NBRAcrylonitrile-butadiene rubber (usually known as nitrile rubber) NIRAcrylonitrile-isoprene rubber NRNatural rubber PBRVinylpyridine-butadiene rubber PSBRVinylpyridine-styrene-butadiene rubber SBRStyrene-butadiene rubber E-SBREmulsion-polymerized SBR S-SBRSolution-polymerized SBR SIBRStyrene-isoprene-butadiene rubber XBRCarboxylic-butadiene rubber XCRCarboxylic-chloroprene rubber XNBRCarboxylic-acrylonitrile-butadiene rubber XSBRCarboxylic-styrene-butadiene rubber BIIRBromo-isobutene-isoprene rubber (usually known as bromobutyl rubber) CIIRChloro-isobutene-isoprene rubber (usually known as chlorobutyl rubber) Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 © BSI 02-19993 3.5 The “T” group The “T” group comprises rubbers having carbon, oxygen and sulfur in the polymer chain. They are usually known as polysulfide rubbers. The following symbols are used: 3.6 The “U” group The “U” group comprises rubbers having carbon, oxygen and nitrogen in the polymer chain. The following symbols are used: 3.7 The “Z” group The “Z” group comprises rubbers having phosphorus and nitrogen in the polymer chain. The following symbols are used: OTA rubber having either a CH2CH2OCH2OCH2CH2 group or occasionally an R group, where R is an aliphatic hydrocarbon, not usually CH2CH2, between the polysulfide linkages in the polymer chain. EOTA rubber having a CH2CH2OCH2OCH2CH2 group and R groups which are usually CH2CH2 but occasionally other aliphatic groups between the polysulfide linkages in the polymer chain. AFMUTerpolymer of tetrafluoroethylene, trifluoronitrosomethane and nitrosoperfluorobutyric acid AUPolyester urethane EUPolyether urethane FZ A rubber having achain and having fluoroalkoxy groups attached to the phosphorus atoms in the chain PZ A rubber having achain and having aryloxy (phenoxy and substituted phenoxy) groups attached to the phosphorus atoms in the chain Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 1629:1995 4 © BSI 02-1999 Annex A (informative) Bibliography 1 ISO 1043-1:1987, Plastics Symbols Part 1: Basic polymers and their special characteristics. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 25 13:34:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI Ð British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. 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