润滑剂、工业用润滑油和有关产品(L类).分类.第99部分:总则

[中文适用范围]： 本部分规定了润滑剂、工业用油和有关产品（L类）的分类原则， 属于GB 7631系列标准的第一部分， 本类产品的类别名称用英文字母“L”为字头表示。 在此分类中， 根据尽可能包括润滑剂、工业用油和有关产品的所有应用场合这一原则将产品分为18个组。每一个组的详细分由GB/T 7631的其他部分给出。 本分类仅适用于新产品。 [外文原描述]： ISO 6743-99:2002 establishes a general system of classification, which appliies to lubricants, Industrial oils and related products, designated by the prefix letter "L". Within class L, 18 families of products are defined, according to the application areas of each, so as to cover, as much as possible, all the applications where lubricants, industrial oils and related products are used. The detailed classification of each family is given in other parts of ISO 6743. The classification only applies to new products.