BS ISO BRITISH STANDARD 6743-5:2006 Lubricants. industrial oils and related products (class L) - Classification Part 5: Family T (Turbines) ICS 75.100 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO6743-5:2006 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 6743-5:2006.It supersedes BS 6413-5:1988 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PTI/7, Lubricants and process fluids. A list of organizations represented on PTI/7 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsiblefor its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was Amendmentsissuedsincepublication published under the authority of the Standards Policy and Date Amd. No. Comments Strategy Committee 0n29December2006 @ BSI 2006 ISBN0580498786 BS ISO 6743-5:2006 ISO INTERNATIONAL STANDARD 6743-5 Second edition 2006-08-15 Lubricants, industrial oils and related products (class L) Classification - Part 5: Family T (Turbines) Lubrifiants,huiles industrielles etproduits connexes(classeL)- Classification Partie 5: Famille T (Turbines) Reference number ISO 6743-5:2006(E) @ISO 2006 i BSISO6743-5:2006 Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsoO, also take part in the work. Iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 6743-5 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 (IsO 6743-5:1988), Table 1 of 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:FamilyF(Spindlebearings,bearingsandassociatedclutches) Part3:FamilyD (Compressors) Part 4:FamilyH (Hydraulic systems) Part 5: Family T (Turbines) Part 6: Family C (Gears) Part 7: Family M (Metalworking) Part 8:FamilyR (Temporary protection against corrosion) Part 9: Family X (Greases) Part 10:FamilyY(Miscellaneous) Part 11:FamilyP (Pneumatic tools) Part 12:Family Q (Heat transfer fluids) Part13:FamilyG(Slideways) ili BS ISO 6743-5:2006 Part 14: Family U (Heat treatment) 一 Part15:FamilyE(Internalcombustion engineoils) Part 99: General 一 iv BSISO 6743-5:2006 Introduction The recent evolution in the electricity production area, with the use of more potent gas turbines and single shaft combined cycle gas turbines has made necessary the update of the classification of fluids for turbines. In lubrication of hydro-turbines. The new classification includes a) new types of gas turbine oils, including synthetic products; lubricates both the gas and the steam turbine); new types of synthetic oils for aircraft turbines with land application; (p detailed classification for hydro-turbines, includi