BS 3502-3-1993 Symbols for plastics and rubber materials - Schedule for symbols for compounding ingredients《塑料和橡胶材料符号 第3部分 配料成分符号一览表》.pdf
《BS 3502-3-1993 Symbols for plastics and rubber materials - Schedule for symbols for compounding ingredients《塑料和橡胶材料符号 第3部分 配料成分符号一览表》.pdf》由会员分享,可在线阅读,更多相关《BS 3502-3-1993 Symbols for plastics and rubber materials - Schedule for symbols for compounding ingredients《塑料和橡胶材料符号 第3部分 配料成分符号一览表》.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS 3502-3: 1993 Symbols for plastics and rubber materials Part 3: Schedule for symbols for compounding ingredientsBS3502-3:1993 This British Standard, having been prepared under the directionof the Plastics and Rubber Standards Policy Committee, was published underthe authority of t
2、he Standards Board and comes intoeffect on 15 March 1993 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference PRM/10 Special announcement in BSINews January 1993 ISBN 0 580 21962 3 Committees responsible for this British Standard The preparation of this B
3、ritish Standard was entrusted by the Plastics and Rubber Standards Policy Committee (PRM/-) to Technical Committee PRM/10, upon which the following bodies were represented: British Plastics Federation Chief and Assistant Chief Fire officers Association Department of the Environment (Building Researc
4、h Establishment) Department of Trade and Industry (Laboratory of the Government Chemist) Malaysian Rubber Producers Research Association Minisitry of Defence Plastics and Rubber Institute Amendments issued since publication Amd. No. Date CommentsBS3502-3:1993 BSI 03-1999 i Contents Page Committees r
5、esponsible Inside front cover Foreword ii 1 Scope 1 2 Informative references 1 3 Use of the symbols 1 4 Accelerators and vulcanizing agents 1 5 Activators and process aids 5 6 Antioxidants and antiozonants 5 7 Blowing agents 7 8 Plasticizers 7 9 Retarders of vulcanization 10 10 Fillers and reinforci
6、ng materials for plastics 10 Annex A (informative) List of symbols used for components of plasticizer terms 12 List of references Inside back coverBS3502-3:1993 ii BSI 03-1999 Foreword This Part of BS 3502 has been prepared under the direction of the Plastics and Rubber Standards Policy Committee. I
7、t supersedes BS 4589:1970, which is withdrawn. The other two Parts of BS 3502 are as follows: Part 1: Schedule for symbols for plastics. This Part superseded BS 3502-1:1978 and is identical with ISO 1043-1:1987 Plastics Symbols Part1 Basic polymers and their special characteristics. Part 2: Schedule
8、 for symbols for rubbers. This Part superseded BS 3502-3:1978 and is identical with ISO 1629:1987 Rubber and latices Nomenclature except for two clauses which were not acceptable in the UnitedKingdom and which therefore were omitted. This Part of BS 3502 is related to ISO 1043-2:1988 and ISO 1043-3:
9、1988 Plastics Symbols Part 2 Fillers and reinforcing materials and Part 3 Plasticizers, and to ISO 6472 Rubber compounding ingredients Abbreviations 1) . All terms and symbols in these standards have been incorporated except symbols offered as alternatives to those used in the UnitedKingdom. These a
10、lternatives, excepting those for most dithiocarbamates (seenote 1 to clause 4), are listed in italics and a cross-reference is given to the preferred symbols. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for the
11、ir 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, pages1 to 14, an inside back cover and a back cover. This standard has been updated (se
12、e copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. 1) To be published in 1993.BS3502-3:1993 BSI 03-1999 1 1 Scope This Part of BS 3502 is intended to provide unambiguous symbols for compounding ingredients used in plas
13、tics and rubbers. The types of ingredients covered are accelerators and vulcanizing agents, activators and process aids, antioxidants and antiozonants, blowing agents, plasticizers, retarders of vulcanization, and fillers and reinforcing materials for plastics. The schedule includes, in general, onl
14、y those symbols that have come into established use, and its aim is both to prevent the occurrence of more than one symbol for a given ingredient and, as far as is practicable, to prevent the interpretation of more than one meaning for a given symbol. The symbols are primarily intended to be a conve
15、nient short-hand for chemical names in publications and other written matter. They are also suitable for data storage systems. NOTEThe list does not purport to be comprehensive, and symbols for other compounding ingredients will be added in future revisions. 2 Informative references This Part of BS
16、3502 refers to other publications that provide information or guidance. Editions of these publications current at the time of issue of this standard are listed on the inside back cover but reference should be made to the latest editions. 3 Use of the symbols 3.1 The first appearance of the symbols i
17、n texts shall be enclosed in parentheses and shall be preceded by the chemical name written in full. 3.2 Only capital letters shall be used, except where otherwise shown in this schedule. 3.3 The list comprises the commonly used name or names for each ingredient, followed by the IUPAC 2)equivalent w
18、here this is available. In cases where IUPAC nomenclature is not available due to uncertainty or ambiguity, an explanation is given in a note. Also in some instances alternative commonly used chemical names are given where they are recognized. The preferred name is listed first. The commonly used ch
19、emical name or the IUPAC name given in this schedule shall be referred to when defining each symbol. 4 Accelerators and vulcanizing agents NOTEIn the UK and most European countries, the dithiocarbamate group is denoted by the symbol “C”, whereas in the system prevailing in North America and some oth
20、er countries this group is usually denoted by “DC”. Thus the British symbol for zinc dimethyldithiocarbamate, for example, is ZDMC but in the USA it is ZMDC. Both symbols are permitted in ISO 6472 but only the first is adopted in this Part of BS 3502. NOTEThe symbol DCP is used as an abbreviation fo
21、r the plasticizer, dicapryl phthalate (clause 8) as well as the vulcanizing agent, dicumyl peroxide. Confusion between the two ingredients is unlikely because of their different functions, with the phthalate being used primarily in plastics materials and the peroxide in rubbers. If both appear in th
22、e same formulation or text, one of them should be identified by an alternative symbol. 2) International Union of Pure and Applied Chemistry. BA butyraldehyde-aniline condensate IUPAC: not possible BiDMC bismuth dimethyldithiocarbamate IUPAC: bismuth bis(dimethyldithiocarbamate) BQD p-benzoquinone di
23、oxime IUPAC: same CBS N-cyclohexylbenzothiazole-2-sulfenamide; N-cyclohexylbenzothiazyl sulfenamide IUPAC: N-cyclohexyl-1,3-benzothiazole-2-sulfenamide CdDEC cadmium diethyldithiocarbamate IUPAC: cadmium bis(diethyldithiocarbamate) CdDMC cadmium dimethyldithiocarbamate IUPAC: cadmium bis(dimethyldit
24、hiocarbamate)BS3502-3:1993 2 BSI 03-1999 CuDMC copper dimethyldithiocarbamate IUPAC: copper bis(dimethyldithiocarbamate) DBA dibenzylamine IUPAC: same DBQD p,p9-dibenzoyl-p-benzoquinone dioxime; quinone dioxime dibenzoate IUPAC: p-benzoquinone bis(O-benzoyloxime) DBTU 1,3-dibutylthiourea IUPAC: 1,3-
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