HEARING PROTECTION EN 352-1:2020 Hearing Protectors - Ear Muffs EN 352-2:2020 Hearing Protectors - Ear Plugs EN 352-3:2020 Hearing Protectors - Helmet Mounted Ear Muffs All these standards establish requirements with regards to other manufacture, design, performances and test methods. SNR (Single Number Rating): Single Average Value of Attenuation HML: Attenuation values expressed in terms of average levels of frequencies: H: Attenuation of PPE at high frequencies (pitched noises). M: Attenuation of PPE at medium frequencies. L: Attenuation of PPE at low frequencies (bass sounds). ANSI S3.19 1974 American National Standard Methods for Hearing Protection Management This standard specifies the test method for determining the level of noise attenuation (NRR Noise Reduction Rating) of the hearing protection, as recommended by the EPA (U.S. Environmental Protection Agency). AS/NZS 1270 2002 Australian and New Zealand Standard for Hearing Protectors Devices. This standard specifies the attenuation offered by a hearing protection device through Sound Level Conversion (SLC80). Types of Personal Hearing Protection Equipment: Earplugs: • Disposable: Single-use earplugs that provide effective noise reduction. • Reusable: Durable earplugs that can be cleaned and reused. Earmuffs: • Passive: Standard earmuffs offering consistent noise reduction. • Automatic Volume Control: Earmuffs that automatically adjust to limit excessive noise while allowing safe sounds. • Communication Headsets: Earmuffs with built-in communication for clear audio in noisy environments. • Helmet Mounted Earmuffs: Earmuffs that can be integrated with Helmets. 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 12 Gauge Shotgun - 165 dB Rock Concert - 105 dB Lawn Mover - 90 dB Vacuum Cleaner - 80 dB Conversation - 65 dB Floor Fan - 50 dB Refrigerator Hum - 40 dB Rustling Leaves - 30 dB Air Conditioning - 140 dB Jet Takeoff - 150 dB Pneumatic Riveter - 124 dB Chainsaw - 110dB DECIBEL SCALE (dBA) 26
RkJQdWJsaXNoZXIy MTc1MzExMw==