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EARMUFF CE GB5893.3-86

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GB5893.3-86 is a Chinese national standard (Guobiao, GB) that outlines testing methods for ear protection devices, including earmuffs (earcaps). This specifi...

Category: Ear Protection

GB5893.3-86 is a Chinese national standard (Guobiao, GB) that outlines testing methods for ear protection devices, including earmuffs (earcaps). This specific part, GB5893.3-86, likely refers to Part 3 of the standard, which is focused on the sound attenuation performance (sound decrement) of ear protection.

Main Parameters Measured:

Frequency Bands:
- Attenuation is measured across standard octave or one-third octave bands, typically at: - SOUND DECREMENT (dB)
  - 125 Hz - ≥8
  - 250 Hz - ≥10
  - 500 Hz - ≥18
  - 1000 Hz - ≥25
  - 2000 Hz - ≥25
  - 4000 Hz - ≥30
  - 8000 Hz - ≥30

Note:

While GB5893.3-86 is similar in structure to ISO 4869-1, the measurement principles are generally aligned globally. If you're testing or certifying earmuffs in China, referencing this GB standard is essential

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