GB/T 16405-2025 in English

This standard provides a method for measuring the insertion loss of acoustic pipe silencers under no airflow conditions in a laboratory setting. It outlines the procedures, equipment requirements, and test conditions necessary to ensure consistent and reliable results. The methodology is designed to be simple and practical, allowing for accurate assessment of silencer performance. The standard specifies the setup, calibration, and data collection processes to support the evaluation of sound reduction capabilities. It also includes guidelines for the interpretation of test results and the documentation of the testing process. The framework ensures that measurements are conducted in a controlled environment, facilitating comparisons between different silencer models.