1、BRITISH STANDARD CONFIRMED DECEMBER 1992 BS 6413-8: 1988 ISO 6743-8: 1987 Lubricants, industrial oils and related products (class L) Part 8: Classification for family R (temporary protection against corrosion) ISO title: Lubricants, industrial oils and related products (classL) Classification Part 8
2、: Family R (Temporary protection against corrosion) UDC 665.765.001.33:621.892:“742”:.004.4:620.193BS6413-8:1988 This British Standard, having been prepared under the directionof the Petroleum Standards Committee, was published under the authority ofthe Board of BSI and comesintoeffect on 29 Februar
3、y 1988 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference PTC/7 Draft for comment 86/51876 DC ISBN 0 580 16363 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Petroleum Standards Committee
4、 (PTC/-) to Technical Committee PTC/7, upon which the following bodies were represented: BEAMA Ltd. British Gas Corporation British Gear Manufacturers Association British Lubricants Federation Ltd. British Railways Board British Refrigeration Association British Steel Corporation Department of Trade
5、 and Industry (National Engineering Laboratory) Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users Association Institute of Petroleum Institute of Refrigeration London Regional Transport Ministry of Defence Amendments issued since publication Amd. No. Date of
6、issue CommentsBS6413-8:1988 BSI 08-1999 i Contents Page Committees responsible Inside front cover National foreword ii 1 Scope and field of application 1 2 References 1 3 Explanation of symbols used 1 4 Detailed classification of products for temporary protection againstcorrosion 1 Annex Definition
7、of terms used in determining specific applications 3 Publications referred to Inside back coverBS6413-8:1988 ii BSI 08-1999 National foreword This Part of BS 6413 has been prepared under the direction of the Petroleum Standards Committee in order to provide a classification scheme for lubricants, in
8、dustrial oils and related products. It is identical with ISO 6743-8:1987 “Lubricants, industrial oils and related products (class L) Classification Part8: Family R (Temporary protection against corrosion)”, published by the International Organization for Standardization (ISO). ISO 6743-8 was prepare
9、d as a result of discussion in Subcommittee 4, Classifications and specifications, of Technical Committee 28, Petroleum products and lubricants, in which the UK participated. A general classification of petroleum products prepared in ISO/TC 28 has allocated class L to lubricants. BS 6413-0 details t
10、he subdivision of class L into families of products, to each of which a code letter is allocated. This Part provides a detailed classification within family R of class L. Further Parts of the International Standard will provide a detailed classification within other families of class L and will be p
11、ublished as further Parts of BS 6413. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention
12、is drawn especially to the following. Wherever the words “part of ISO 6743” appear, referring to this standard, they should be read as “Part of BS 6413”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their co
13、rrect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International Standard Corresponding British Standard ISO 3448:1975 BS 4231:1982 Classification for viscosity grades of industrial liquid lubricants (Identical) ISO 6743-
14、0:1981 BS 6413 Lubricants, industrial oils and related products (class L) Part 0:1983 Classification (general) (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 to4, an inside back cover and a back cover. This standard has been updated
15、(see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS6413-8:1988 BSI 08-1999 1 1 Scope and field of application This part of ISO 6743 establishes the detailed classification of family R (Temporary protection against
16、corrosion), which belongs to class L (Lubricants, industrial oils and related products). It should be read in conjunction with ISO 6743-0. This classification applies to categories of products which are assigned to ensure temporary protection against corrosion. It includes only those products the ma
17、in function of which is to ensure temporary protection, the word “temporary” being relevant not to time-limit product efficiency but to the capacity for removal of the product after a certain time. This classification excludes products that are applied for other purposes but also ensure temporary pr
18、otection. Vapour-phase inhibitors and other chemical products that differ from petroleum products in behaviour are also excluded. This classification applies to protection of both bare metals and coated metals (painted metallic surfaces, car bodies, etc.). In addition, corrosion is regarded as deter
19、ioration of surfaces of all metals, not only ferrous. 2 References ISO 3448, Industrial liquid lubricants ISO viscosity classification. ISO 6743-0, Lubricants, industrial oils and related products (Class L) Classification Part0:General. 3 Explanation of symbols used 3.1 This detailed classification
20、of family R has been established by defining the categories of products required for the main applications of temporary protection against corrosion, in relation with duty conditions (see the Annex) and nature of the protecting film. 3.2 Each category is designated by a symbol consisting of a group
21、of letters, which together constitute a code. NOTEThe first letter of the category (R) identifies the family of the product considered but any following letters taken separately have no significance on their own. The designation of each category can be supplemented by the addition of viscosity grade
22、s according to ISO 3448. 3.3 In this classification system, products are designated in a uniform manner. For example, a particular product may be designated in complete form, i.e: ISO-L-RE, or in an abbreviated form, i.e.:L-RE. 4 Detailed classification of products for temporary protection against c
23、orrosionBS6413-8:1988 2 BSI 08-1999 Code letter General application Particular application More specific application Special properties and nature of the film Symbol ISO-L Typical application Remarks R Temporary protection against corrosion Main use: Protection of bare metals Light duty conditions (
24、See the Annex.) Water-displacing fluid which leaves a thin protecting film RA Machined and ground parts between operations Removed by suitable solvent or water-based detergent (removal may not be necessary) Water-based fluid which leaves an oily thin film RB RB products having water-dispacing proper
25、ties RBB Undiluted fluid RC RC products having water-displacing properties RCC More severe duty conditions (See the Annex.) Undiluted fluid RD Steel sheets, plate metal parts Steel tubes, bars and wires Castparts, machined parts- interoperations or for CKD aNuts, bolts screws Aluminium sheets Remove
26、d by suitable solvent and/or water-based detergent RD products having water-displacing properties RDD Solvent-based fluid which leaves an oily or greasy film RE RE products having water-displacing properties REE Solvent-based fluid which leaves a waxy to dry film RF Mechanical parts for CKD aAlumini
27、um sheets Removed by suitable solvent and/or water-based detergent RF products having water-displacing properties RFF Solvent-based fluid which leaves a bituminous film RG Heavy-duty machinery Stub axle Removed by suitable solvent and mechanical effort Water-based fluid which leaves waxy to greasy f
28、ilm RH Tubes wire and mechanical parts Removed by suitable solvent water-based detergent Solvent- or water-based fluid which leaves a peelable film RP Aluminium sheets Stainless steel sheets Removed by peeling or by using a suitable solvent or water-based medium Plastic compound applied when melted
29、RT Machined and ground parts Small fragile tools Removed by peeling Soft or thick grease applied either hot or cold RK Bearings Machined parts Removed by suitable solvent or simply wiped off Main use: Protection of coated metals All conditions Undiluted fluid RL Coated steel sheets except tin-plated
30、 Zinc-coated sheets Assembled parts: engines, weapons Removed by peeling or by using suitable solvent or water-based medium Solvent- and/or water-based fluid which leaves a waxy to dry film RM Painted surfaces Car bodies Coated steel sheets a CKD = Completely knocked down.BS6413-8:1988 BSI 08-1999 3
31、 Annex Definition of terms used in determining specific applications (Thisannex forms an integral part of the Standard.) A.1 light-duty conditions (1) Storage, for periods of less than 4 months, of parts not exposed either to humidity due to repeated condensation (stores or rooms subject to variable
32、 temperatures), or to particularly corrosive conditions (acidic or alkaline vapours, smoke, etc.). (2) Short-term movement of parts in closed and dry conditions (for example, air-tight packaging, air-tight containers or enclosed vehicles). A.2 more severe duty conditions All cases other than those c
33、overed by light-duty conditions (A.1).4 blankBS6413-8:1988 BSI 08-1999 Publications referred to See national foreword.BS 6413-8: 1988 ISO 6743-8: 1987 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandar
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