1.1 本规程涵盖了用于海上危险区域的内燃机组件的测试、额定值和安装方法。发动机的热额定值由危险区域内发动机和排气系统温度的实际读数确定，如第节中的参考文献所定义 2. 或由具有管辖权的当局指定，或两者兼而有之。本规程的目标是对发动机组件进行热分级，并提供额外的安装建议，以降低点燃海洋船舶危险区域内可能存在的可燃混合物的风险。 1.2 仅适用于服务的船用发动机，其设计和制造符合 3.1.2 ，被考虑。 1.3 本规程中的单位制应为SI（公制）形式，以及置于括号中的标准（英制）等效单位制，例如20 °C（68 °F）。 1.4 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、健康和环境实践，并确定监管限制的适用性。 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。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This practice covers the method of testing, rating and installation of internal combustion engine packages for use in hazardous areas in marine applications. The thermal rating of the engine is determined by the actual readings of engine and exhaust system temperatures within hazardous areas, as defined by references in Section 2 of this practice, or as designated by the authority having jurisdiction, or both. The goal of this practice is to thermally rate engine packages, and provide additional installation recommendations, in order to reduce the risk of igniting the ignitable mixtures that may be present within the hazardous areas of marine vessels. 1.2 Only a marine engine suitable for the service, designed and constructed in conformance with the requirements of 3.1.2 , is considered. 1.3 The system of units in this practice shall be SI (metric) form, along with the standard (English) system equivalent placed in parentheses, for example, 20 °C (68 °F). 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.