ISO 6743-9:2003 潤滑剤、工業用油および関連製品（クラスL）—分類—パート9：ファミリーX（グリース） | ページ 2

Foreword

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 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 Electrotechnical 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.

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 part of ISO 6743 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

International Standard ISO 6743-9 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 6743-9:1987), 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 clutches)
• Part 3: Family D (Compressors)
• Part 4: Family H (Hydraulic systems)
• Part 5: Family T (Turbines)
• Part 6: Family С (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 (Pneumatic tools)
• Part 12: Family Q (Heat transfer fluids)
• Part 13: Family G (Slideways)
• Part 14: Family U (Heat treatment)
• Part 15: Family E (Internal combustion engine oils)
• Part 3А: Family D (Compressors)
• Part 3B: Family D (Gas and refrigeration compressors)
• Part 99: General

Annex A of this part of ISO 6743 is for information only.

1 Scope

This part of ISO 6743 establishes a detailed classification of family X (Greases) which belongs to class L (Lubricants, industrial oils and related products).

It should be read in conjunction with ISO 6743-99 ^[1] .

This classification applies to categories of greases used for lubrication of equipment, components of machines, vehicles, etc.

The greases have been classified according to the operating conditions under which they are used, because the versatile nature of grease makes it impractical to classify them according to the end use. It will therefore be necessary to consult the supplier to be certain that the grease can be used in, for example, rolling bearings or pumped supply systems, and also concerning the compatibility of products.

In this classification, a grease cannot have more than one symbol. This symbol should correspond to the most severe conditions of temperature, water contamination and load in which the grease can be used.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 6743. For dated references, 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 editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.

Bibliography