在流体过滤系统的发展过程中，许多术语已用于描述过滤介质、过滤器组件、试验方法和试验材料的特性。不可避免的是，一些术语的应用比较松散，因此同一术语对不同的人或在不同的参照系中可能有不同的含义。SAE发动机委员会的过滤器测试方法小组委员会认识到需要明确定义的术语，这些术语在所有情况下对所有人只有一种含义，因此涉及过滤器评估标准方法的文件只有一种解释，因此汇编了本相关术语表。 尚未试图编制一份包罗万象的文件，其中包含与所有类型的液体过滤器相关的所有术语的定义。相反，术语表仅限于润滑油和燃料过滤器可能遇到的术语。同时，我们一直谨慎地避免与其他标准化组织发布的定义发生冲突。如果不相同，这些术语的定义至少在措辞上传达了相同的含义，希望用更少、更简单或更精确的词语表达。我们希望，这一努力将有效地帮助消除术语和过滤使用不准确造成的歧义。 SAE过滤器试验方法文件中引用了本术语表。这些文件中使用的术语旨在具有本术语表所示的定义，而非其他定义。随着新术语及其定义与过滤科学相关，并与本小组委员会编制的文件相关，将通过发布附录或修订和重新发布整个文件的方式对术语表进行修订。

Over the years during which fluid filtration systems have been developing, many terms have come into use for descriptions of characteristics of filter media, filter assemblies, test methods, and test materials. Inevitably, some terms have been applied loosely, so that the same term may have different meaning to different people, or in different frames of reference.Recognizing the need for clearly defined terms, which can have only one meaning for all persons in all circumstances, so that documents dealing with standard methods of evaluation of filters will have only one interpretation, the Filter Test Methods Subcommittee of the SAE Engine Committee has compiled this Glossary of related terms. No attempt has been made to produce an all-inclusive document, containing definitions of all terms related to all types of fluid filters. Instead, the Glossary is confined to the terms likely to be encountered in relation to filters for lubricating oil and fuels. At the same time, we have been careful to avoid conflict with the definitions published by other standardizing groups. If not identical, the definitions of these terms are at least worded to convey an identical meaning, hopefully in fewer, simpler or more precise words.We hope that this effort will be effective in helping to eliminate the ambiguities which have resulted from imprecise use of terminology and filtration.This glossary is referenced in the SAE filter test methods documents. Terms used in those documents are intended to have the definitions shown by this Glossary, and no other.As new terms and their definitions become associated with the science of filtration and are relevant to the documents prepared by this subcommittee, revisions to the Glossary will be made, either by issuance of addenda or by revision and republication of the entire document.