ISO INTERNATIONAL STANDARD 6743-14 First edition 1994-04-15 Lubricants,industrialoilsandrelated products (class L) Classification Part 14: Family U (Heat treatment) Lubrifiants, huiles industrielles et produits connexes (classe L) Classification Partie 14: Famille U (Traitement thermique) ISO Reference number ISO6743-14:1994(E) ISO6743-14:1994(E) Foreword IsO (the International Organization for Standardization) is a worldwide 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, governmenta 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 memberbodies for voting. Publication as an International a vote. International Standard iSO 6743-14 was prepared by Technical Committee ISO/Tc 28, Petroleum products and lubricants, Subcommittee SC 4, Classifications and specifications. ISO 6743 consists of the following parts, under the general title Lubricants, industrial oils and related products (class L) - Classification: Part 0:General —Part1:FamilyA(Total losssystems) Part 2: Family F (Spindle bearings, bearings and associated clutches) —Part4:FamilyH (Hydraulic systems) Part 5: Family T (Turbines) --Part 6:Family C (Gears) -Part7:FamilyM (Metalworking) - Part 8:Family R (Temporary protection against corrosion) -Part9:FamilyX(Greases) —Part10:FamilyY(Miscellaneous) SO1994 microfilm, without permission in writing from the publisher International Organization for Standardization CasePostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii ISO ISO 6743-14:1994(E) Part 11: Family P (Pneumatic tools) —Part12:FamilyQ(Heattransferfluids) Part 13:Family G (Slideways) — Part 14: Family U (Heat treatment) Part3A:FamilyD(Compressors) - Part3B:Family D (Gas and refrigeration compressors) Part ...: Family E (Automotive engine oils)Classification ili