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Reciprocating internal combustion engines—Measurement method for exhaustsilencers—Sound power level of exhaust noise and insertion loss using soundpressure and power loss ratio
IDT ISO 15619:2013
全国内燃机标准化技术委员会(SAC/TC 177)
本标准规定了往复式内燃机配用排气消声器的测量方法和要求,包括实验室测量方法和现场测量方法。
实验室(工程法)测定的量为:
——声压法测定的排气噪声声功率级(A计权或频带),准确度等级为2级;
——排气消声器的插入损失(A计权或频带);
——往复式内燃机的功率损失比。
现场和实验室(简易法)测定的量为:
——声压法测定的排气噪声声功率级(A计权),准确度等级为3级;
——排气消声器的插入损失(A计权)。
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