小型发动机动力设备用操作员耳朵（所受噪声）声级的测试规程

[中文适用范围]： 本 SAE 推荐实践规定了用于测量 15 kW (20 bhp) 以下发动机驱动设备的操作员耳朵声级的仪器和程序。使用此程序获得的声级代表了设备在典型操作条件下产生的声级。它旨在包括割草机、吹雪机和耕耘机等设备。它不包括主要设计用于在高速公路或工厂或建筑物内运行的设备，或其他 SAE 标准或推荐实践涵盖的摩托车、雪地摩托和游乐摩托艇等车辆。此程序不包括链锯。当测量由电力或其他电源供电的类似设备的操作员耳朵声级时，也可以使用本 SAE 推荐做法。 [外文原描述]： This SAE Recommended Practice establishes the instrumentation and procedure to be used in measuring the operator ear sound level for engine powered equipment under 30 kW (40 bhp). The sound levels obtained by using this procedure are representative of the sound levels generated by the equipment under typical operating conditions. It is intended to include equipment such as lawn mowers, snow blowers, and tillers. It is not intended to include equipment designed primarily for operation on highways or within factories or buildings, or vehicles such as motorcycles, snowmobiles, and pleasure motorboats that are covered by other SAE StandardDetails or Recommended Practices.This procedure does not cover handheld equipment such as chainsaws, leaf blowers, and trimmers.This SAE Recommended Practice may also be used when measuring the operator ear sound level of similar equipment powered by electricity or other power sources.Cross Reference: ANSI/ASA S1.1,ANSI/ASA S1.4,ANSI/ASA S1.40,ANSI/ASA S1/13,ASTMC423,IEC 60942,ISO 11094,ISO 3411,ISO 3744,J184