请注意:此版本的所有临时修订版将在您购买时提供。1129UL船用排气发动机组件1。1这些要求涵盖从发动机排气歧管连接到船体排放配件的船用发动机湿式排气系统和部件。1.2这些要求涵盖的部件旨在按照消防游乐和商用机动船标准NFPA 302.1.3的适用要求进行安装，该产品包含新的或与本标准要求不同的特征、特性、部件、材料或系统，且涉及火灾、触电或人身伤害风险的，应使用适当的附加部件和终端进行评估- 产品要求，以确定维持本标准意图最初预期的安全水平。如果产品的特征、特性、组件、材料或系统与本标准的具体要求或规定相冲突，则不应判定其符合本标准。在适当的情况下，应根据本标准的制定、修订和实施所采用的方法，提出并采用要求的修订。

Please note: All interim revisions for this edition available at time of your purchase will be included.Wet Exhaust Components for Marine EnginesUL 1129Scope1.1 These requirements cover marine engine wet exhaust systems and components from the connection to the engine exhaust manifold to the hull discharge fitting.1.2 The components covered by these requirements are intended for installation in accordance with the applicable requirements of the Standard for Fire Protection Pleasure and Commercial Motor Craft, NFPA 302.1.3 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements to determine that the level of safety as originally anticipated by the intent of this standard is maintained. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard shall not be judged to comply with this standard. Where appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.