GB/T 33928-2017 in English

This standard provides a method for measuring the sound pressure of exhaust noise, sound power level, insertion loss, and power loss ratio of exhaust silencers for reciprocating internal combustion engines. It outlines the procedures and technical requirements for conducting these measurements in a controlled environment. The standard specifies the equipment, calibration procedures, and test conditions necessary to ensure accurate and consistent results. It also includes guidelines for data analysis and reporting. The method is applicable to the evaluation of exhaust silencers used in various types of reciprocating engines. The standard ensures that the measurement process is standardized and repeatable, facilitating comparison between different silencer designs and performance assessments.