1.1本指南涵盖了评估环境噪声的许多测量方法和标准。它包括以下内容: 1.1.1权重、惩罚和归一化因子的使用； 1.1.2噪声测量和标准的类型，说明其局限性和最佳用途； 1.1.3标准来源； 1.1.4标准选择的推荐程序； 1.1.5选定可用标准的目录；和 1.1.6声级测量和标准的建议应用。 1.2 标准选择 -本指南将帮助用户选择以下标准: 1.2.1评估现有或潜在室外声音对社区的影响； 1.2.2制定或修订当地噪声条例、规范或细则，包括分区法规中的性能标准；或 1.2.3评估来自外部来源的室内声音。 1.3 标准的原因 -本指南讨论了制定噪声标准的许多原因、测量和规定声音的方法以及最广泛使用的标准类型的优缺点。本指南向用户推荐适当的文档，以获取更详细的信息和指导。具体标准清单包括国家政府监管要求。需要进一步了解声音和声音测量一般背景的用户请参阅参考资料部分列出的书籍。 1.4法规中的标准某些标准规定由政府法规、法律或条例用于特定目的。这些标准考虑了易于执行和对政府的成本影响。在某些情况下，它们可能不是最合适的标准。本指南将讨论这些标准的局限性。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This guide covers many measurement methods and criteria for evaluating environmental noise. It includes the following: 1.1.1 The use of weightings, penalties, and normalization factors; 1.1.2 Types of noise measurements and criteria, indicating their limitations and best uses; 1.1.3 Sources of criteria; 1.1.4 Recommended procedures for criteria selection; 1.1.5 A catalog of selected available criteria; and 1.1.6 Suggested applications of sound level measurements and criteria. 1.2 Criteria Selection —This guide will assist users in selecting criteria for the following: 1.2.1 Evaluating the effect of existing or potential outdoor sounds on a community; 1.2.2 Establishing or revising local noise ordinances, codes, or bylaws, including performance standards in zoning regulations; or 1.2.3 Evaluating sound indoors that originated from outside sources. 1.3 Reasons for Criteria —This guide discusses the many reasons for noise criteria, ways sound can be measured and specified, and advantages and disadvantages of the most widely used types of criteria. The guide refers the user to appropriate documents for more detailed information and guidance. The listing of specific criteria includes national government regulatory requirements. Users needing further general background on sound and sound measurement are directed to the books listed in the References section. 1.4 Criteria in RegulationsCertain criteria are specified to be used by government regulation, law, or ordinance for specific purposes. Ease of enforcement and cost impact on government are considerations for these criteria. They may not be the most appropriate criteria in some circumstances. This guide will discuss the limitations of these criteria. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.