What is BS EN 352‑9 about?
BS EN 352‑9 is the ninth part of the multi-series on hearing protectors.
BS EN 352‑9 applies to earplugs supplemented by a safety-related audio input. The audio signal can be transmitted by electrical input or other communication like Bluetooth1. BS EN 352‑9 specifies requirements on construction, design, performance, marking, and user information related to the inclusion of the safety-related audio input.
Who is BS EN 352‑9 for?
BS EN 352‑9 on earplugs with safety-related audio input is useful for:
- Hearing protector device manufacturers
- Quality control personnel
- Hearing protector device designers
- Acoustic engineers
Why should you use BS EN 352‑9?
Earplugs with safety-related audio input are designed to provide speech information and warning signals while providing attenuation of external sound. They may be selected for use in a number of different environments, for example in air traffic communication, in the police forces, in the broadcasting and entertainment industries.
BS EN 352‑9 provides you with marking, design, and other requirements for earplugs with safety-related audio input that are necessary to protect the wearer from hearing injury and helps to improve the audibility of vital communication and emergency sounds in non-continuous noisy environments.
Overall, BS EN 352-9 covers all the safety requirements for earplugs with safety-related audio input that assists users to produce high-quality earplugs with safety-related audio input while eliminating hazardous steady-state or impulse noise.