1、BRITISH STANDARD BS ISO 6743-1:2002 Lubricants, industrial oils and related products (class L) Classification Part 1: Family A (Total loss systems) ICS 75.100 BS ISO 6743-1:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy
2、Committee, was published under the authority of the Standards Policy and Strategy Committee on 20 December 2002 BSI 20 December 2002 ISBN 0 580 40996 1 National foreword This British Standard reproduces verbatim ISO 6743-1:2002 and implements it as the UK national standard. It supersedes BS 6413-1:1
3、983 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PTI/7, Lubricants and process fluids, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British
4、Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This public
5、ation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internationa
6、l/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title p
7、age, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 6743-1:2002(E)INTERNATIONAL STANDARD ISO 6743-1 Sec
8、ond edition 2002-09-01 Lubricants, industrial oils and related products (class L) Classification Part 1: Family A (Total loss systems) Lubrifiants, huiles industrielles et produits connexes (classe L) Classification Partie 1: Famille A (Graissage perdu) BSISO67431:2002BSISO67431:2002iiIS-3476 O1:(20
9、02)E I SO 2002 All irthgs ersedevr iiiForeword 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
10、 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 Electrotec
11、hnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by
12、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 possibility that some of the elements of this part of ISO 6743 may be the subject of pat
13、ent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 6743-1 was prepared by Technical Committee ISO/TC 28, Petroleum products and lubricants, Subcommittee SC 4, Classifications and specifications. This second edition cancels and replaces the first edition
14、(ISO 6743-1:1981), which has been technically revised. ISO 6743 consists of the following parts, under the general title Lubricants, industrial oils and related products (class L) Classification: Part 1: Family A (Total loss systems) Part 2: Family F (Spindle bearings, bearings and associated clutch
15、es) Part 3: Family D (Compressors) Part 4: Family H (Hydraulic systems) Part 5: Family T (Turbines) Part 6: Family C (Gears) Part 7: Family M (Metalworking) Part 8: Family R (Temporary protection against corrosion) Part 9: Family X (Greases) Part 10: Family Y (Miscellaneous) Part 11: Family P (Pneum
16、atic tools) Part 12: Family Q (Heat transfer fluids) Part 13: Family G (Slideways) Part 14: Family U (Heat treatment) BSISO67431:2002iiiIS-3476 O1:(2002)E vi I SO 2002 All irthgs ersedevr Part 15: Family E (Internal combustion engine oils) Part 99: General BSISO67431:2002ivINTENRATIONAL TSANDADR IS-
17、3476 O1:(2002)EI SO 2002 All irthgs ersedevr 1Lubricants, industrial oils and related products (class L) Classification Part 1: Family A (Total loss systems) 1 Scope This part of ISO 6743 establishes the detailed classification of family A (Total loss systems) which belongs to class L (Lubricants, i
18、ndustrial oils and related products). This part should be read in conjunction with ISO 6743-99 (see 1 in the bibliography). 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this part of ISO 6743. For dated refe
19、rences, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 6743 are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references
20、, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 3448:1992, Industrial liquid lubricants ISO viscosity classification 3 Explanation of symbols used 3.1 The detailed classification of family A
21、 has been established by defining the categories of products required for the main applications of this family. 3.2 Each category is designated by a symbol consisting of a group of letters, which together constitute a code. NOTE The first letter of the code (A) identifies the family of the product c
22、onsidered, but the second letter taken separately has no significance of its own. The designation of each category may be supplemented by the addition of viscosity grades according to ISO 3448. 3.3 For categories AY, AN and AB, products are designated by numerical grades according to their viscosity
23、 (VG) as given in ISO 3448. This form may be complete, e.g. ISO-L-AN 32, or abbreviated to L-AN 32. NOTE For category AC, additional categories will be defined in a specification standard in the course of development (see annex A), corresponding to low-temperature operability. 4 Detailed classificat
24、ion The detailed classification is shown in Table 1. BSISO67431:20021IS-3476 O1:(2002)E 2 I SO 2002 All irthgs ersedevrTable 1 Classification of lubricants, industrial oils and related products (class L) Family A (Total loss systems) Code letter General application More specific application Composit
25、ion and properties Symbol ISO-L Typical applications Remarks Mildly refined mineral oils AY Rough applications, axles, railway points, etc. aSome products of this category may contain components which could be harmful to health and environment Refined mineral oils AN Lightly loaded parts (rolling be
26、arings, gears), plain bearings in hydrodynamic regime Refined mineral oils containing bitumen or additives to improve certain properties, e.g. adhesiveness, extreme pressure, anti-corrosion AB Open gears, wire ropes, mechanical chains b A Total loss systems Code letter Oils, either of mineral, anima
27、l, vegetable or synthetic origin, containing suitable additives to impart the necessary properties AC Chains of chain saws aFor those implying direct discharge into the environment, the lubricant has to comply with the regulation in force in each country. bFor some applications, such as open gears,
28、wire ropes, exposed chains, railway points, rail curves and plain bearings, etc., soft to fluid lubricating greases may be used. The classification and specifications of such greases will be addressed separately.BSISO67431:20022IS-3476 O1:(2002)E I SO 2002 All irthgs ersedevr 3Annex A (informative)
29、Additional sub-categories for category AC For product category AC, additional sub-categories will be defined in a separate International Standard, addressing the specifications of the products. The sub-categories will correspond to various levels of low-temperature operability, oxidation stability a
30、nd environmental acceptability (toxicity and biodegradability). At the time of publication of this part of ISO 6743, the specification standard for category AC is in the course of development, at the preliminary stage and will be referenced as ISO 11679: 1) , Lubricants, industrial oils and related
31、products (class L) Family A (Total loss systems) Specifications for lubricants for saw chains and guide bars of chain saws. 1) To be published. BSISO67431:20023IS-3476 O1:(2002)E 4 I SO 2002 All irthgs ersedevrBibliography 1 ISO 6743-99:2002, Lubricants, industrial oils and related products (class L
32、) Classification Part 99: General BSISO67431:20024BS ISO 6743-1:2002 BSI 389 Chiswick High Road London W4 4AL BSI 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 le
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