This document specifies methods for determining the breathing resistance of respiratory protective devices. It outlines procedures for measuring both inhalation and exhalation resistance under various conditions, ensuring the accuracy and repeatability of test results. The standard provides detailed guidance on the equipment required, the setup of tests, and the parameters to be recorded during the evaluation process. It is intended for use by manufacturers, testing laboratories, and other stakeholders involved in the production and assessment of respiratory protective devices. The procedures described are applicable to a wide range of devices designed to protect the user from inhaling harmful substances. The standard contributes to the overall quality and reliability of respiratory protective equipment by establishing a consistent framework for performance evaluation.
*** Please note: This description may not be accurate, please refer to the official documentation.