Small craft — Airborne sound emitted by powered recreational craft — Part 1: Pass-by measurement procedures
小艇——电动汽车发出的空气载声第1部分:通过测量程序
发布日期:
2008-09-19
ISO 14509-1:2008规定了获得可重复和可比的测量结果的条件,该测量结果是在动力休闲艇(船体长度不超过24 m)通过时产生的空气传播声音的最大声压级,包括船内、船尾驱动装置、个人船艇(PWC)和舷外发动机。
它还规定了带整体排气系统的船尾传动装置和舷外发动机的标准基于工艺的型式试验。它还规定了除最大声压级外,如果需要确定声暴露级,应遵循的程序。
ISO 14509-1:2008中规定的声学测试程序的精度等级为工程级(2级)。
ISO 14509-1:2008 specifies the conditions for obtaining reproducible and comparable measurement results of the maximum sound pressure level of airborne sound generated during the passage of powered recreational craft of up to 24 m length of hull, including inboards, stern drives, personal watercraft (PWC) and outboard motors.
It also specifies standard craft based type tests for stern drives with integral exhaust systems and for outboard motors. It also specifies the procedure to be followed if, in addition to the maximum sound pressure level, the determination of the sound exposure level is desired.
The accuracy grade of the acoustical test procedures specified in ISO 14509-1:2008 is engineering grade (grade 2).