DIN 7504, a German standard published in 1993, outlines the guidelines for the testing and evaluation of the performance of respiratory protective devices, specifically filtering half masks. This standard provides a comprehensive framework for assessing the efficiency of these devices in filtering out airborne contaminants, ensuring the safety and health of wearers in various occupational environments. By establishing strict testing protocols and evaluation criteria, DIN 7504 sets a benchmark for the quality and reliability of respiratory protective equipment, thereby safeguarding the well-being of workers exposed to hazardous substances.
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