SAE J 1207:1987 (R2000)被替代
Measurement Procedure For Determination Of Silencer Effectiveness In Reducing Engine Intake Or Exhaust Sound Level
出版：SAE International
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基本信息
標準編號： SAE J 1207:1987 (R2000)
標準類別：Standard
出版單位：SAE International
標準頁數：7
標準簡介
Gives the instrumentation, environment and test methods for use for measurement of the silencer system effectiveness for reduction of intake or exhaust sound level of internal combustion engines. Includes the intake or exhaust silencer, ralated piping and components. Meant for engine-dynamometer testing, and does not necessarily apply to vehicle testing.
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