What is EN ISO 11681-9:2016

The international standard EN ISO 11681-9:2016 is a technical document that provides guidelines and specifications for the measurement of sound pressure levels in environments affected by noise. This standard is part of a series of standards developed by the International Organization for Standardization (ISO) to ensure uniformity and accuracy in measuring and reporting noise levels. EN ISO 11681-9:2016 specifically focuses on the measurement of airborne sound emitted by machinery and equipment.

Scope and Purpose

The scope of EN ISO 11681-9:2016 encompasses the measurement and evaluation of sound pressure levels generated by machinery and equipment in various environments. The purpose of this standard is to establish consistent criteria and procedures for assessing and controlling noise emissions, ensuring the health and safety of individuals exposed to high noise levels. It provides guidance on measuring methods, instrumentation, and data analysis techniques to obtain reliable and comparable results across different settings.

Measurement Procedure

EN ISO 11681-9:2016 outlines a detailed procedure for measuring sound pressure levels. It recommends using precision sound level meters to capture accurate readings. The standard specifies the characteristics and performance requirements for these meters, including their frequency range, sound level ranges, and calibration procedures. The document also provides instructions on microphone positioning, measurement points, and measurement durations to ensure consistent and representative measurements in different scenarios.

Reporting and Evaluation

After conducting the measurements, EN ISO 11681-9:2016 offers guidance on analyzing the collected data and reporting the results. It provides formulas and calculation methods for determining the overall sound pressure level and any tonal or impulsive components present in the sound emissions. The standard also sets criteria for evaluating noise levels against specified limits and provides guidelines for assessing the potential impact of excessive noise on individuals' health and well-being. The final report should include all relevant measurement details, analysis, and conclusions.